V/154/sdss16

Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020) ReadMe+ftp Data Release 16 (469,050,976 primary sources plus 325,277,739 secondary sources) (original column names in green) (1231051050 rows)

-c=044.992081 +00.831532, eq=ICRS, rs=2

Post annotation about this record

Note:

Column	Value		Explain   (UCD)
_r	0.001	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09952	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5161	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75215	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7280	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05217327	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32793018	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237660340164166130		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992081	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831532	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237660340164165632		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68988043784		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.649	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.532	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.289	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.683	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.740	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.590	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.091	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.051	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.025	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.036	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.629	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.660	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.363	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.733	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.805	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.340	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.198	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.112	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.043	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.066	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	0.107	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.073	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.028	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	0.968	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	3.274	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	0.045	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.171	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.140	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.048	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.725	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.602	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.043	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.001	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.058	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.055	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.240		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.762		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.294		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	97.4	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	74.7	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	66.9	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	75.7	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	73.9	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199389089801		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146342408		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342408		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275280593416		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.025	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.023	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.08	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.05	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.05	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.527	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.557	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.290	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.675	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.721	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.609	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.097	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.051	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.023	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.034	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52585.3323	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52585.3340	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52585.3306	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52585.3315	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52585.3331	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3461-301-5-0019-0498		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52585.3323	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.001	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09952	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5161	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75215	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7280	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05217327	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32793018	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237660340164166131		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992081	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831532	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237660340164165632		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	35253360132624		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.649	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.532	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.289	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.683	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.740	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.590	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.091	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.051	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.025	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.036	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.629	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.660	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.363	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.733	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.805	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.340	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.198	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.112	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.043	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.066	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	0.107	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.073	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.028	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	0.968	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	3.277	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	0.045	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.171	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.140	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.048	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.728	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.621	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.050	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.001	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.056	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.056	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.146		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.763		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.400		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	97.4	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	74.7	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	66.9	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	75.7	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	73.9	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	11258999202775057		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146342416		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712912		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342416		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275280593424		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.025	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.023	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.08	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.05	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.05	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237660340164166130		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.526	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.557	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.289	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.675	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.721	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.609	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.097	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.051	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.023	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.034	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52585.3323	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52585.3340	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52585.3306	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52585.3315	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52585.3331	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3461-301-5-0019-0499		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52585.3323	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.005	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09921	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5184	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75184	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7303	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05217123	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32793064	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663329471693333		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992080	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831533	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663329471692800		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	158398662443016		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.713	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.558	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.319	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.655	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.778	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.975	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.119	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.057	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.024	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.044	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	26.073	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.969	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.370	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.717	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.986	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.936	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.348	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.124	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.043	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.099	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	0.286	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.179	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.234	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.192	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.251	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	0.078	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.125	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.318	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	1.466	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.083	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.061	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.002	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.130	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.063	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.093		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.118		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.079		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.993		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.482		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	134.6	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	49.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	158.9	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	139.5	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	70.6	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388958729		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275280560136		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375176		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	158604820873224		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.032	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.036	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.12	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.01	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.03	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.04	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.146	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.552	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.289	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.609	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.763	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.927	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.126	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.059	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.022	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.038	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52912.3861	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52912.3878	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52912.3845	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52912.3853	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52912.3870	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4157-301-5-0176-0533		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52912.3861	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.005	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09921	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5184	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75184	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7303	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05217123	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32793064	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663329471693334		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992080	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831533	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663329471692800		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	263951778709520		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.789	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.558	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.319	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.655	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.778	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.967	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.119	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.057	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.024	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.044	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	26.071	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.970	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.370	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.717	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.985	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.937	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.348	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.124	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.043	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.099	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	0.286	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.179	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.233	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.189	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.251	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	0.078	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.124	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.317	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	1.472	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.083	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.102	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.004	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.131	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.063	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.097		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.105		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.075		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.994		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.483		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	156.3	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	49.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	158.9	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	104.3	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	70.6	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9077568401571857		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275280560144		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712912		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375184		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	158604820873232		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.032	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.036	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.14	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.12	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.09	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.01	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.03	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.04	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237663329471693333		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.205	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.552	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.289	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.609	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.763	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.904	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.126	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.059	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.022	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.038	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52912.3861	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52912.3878	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52912.3845	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52912.3853	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52912.3870	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4157-301-5-0176-0534		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52912.3861	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.024	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09874	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.4937	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75137	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7055	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05217650	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32793687	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237659914972168662		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992078	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831526	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237659914972168192		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	96905331464		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.209	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.998	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.348	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.667	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.754	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.347	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.158	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.061	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.024	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.037	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.681	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.553	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.461	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.768	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.846	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.557	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.580	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.136	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.049	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.076	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.584	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	0.830	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.313	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.148	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.226	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.005	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.121	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.050	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.075	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	2.005	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.002	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.134	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.037	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.068	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.600		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.056		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.124		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	1.000		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	0.0	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	119.3	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	96.1	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	64.6	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	74.1	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199389091081		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275154731528		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342408		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275280592904		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.044	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.034	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.00	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.13	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.04	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.05	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.26	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.05	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.231	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	23.019	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.320	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.635	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.726	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.427	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.170	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.062	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.023	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.036	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52552.4566	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52552.4583	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52552.4550	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52552.4558	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52552.4574	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3362-301-5-0168-0470		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52552.4566	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.024	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09874	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.4937	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75137	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7055	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05217650	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32793687	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237659914972168663		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992078	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831526	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237659914972168192		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	105622104310616		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	22.905	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.998	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.348	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.667	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.754	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.370	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.158	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.062	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.024	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.038	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.681	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.553	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.461	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.768	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.847	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.558	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.580	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.138	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.051	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.078	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.584	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	0.830	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.313	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.148	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.227	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.005	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.121	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.049	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.076	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	3.054	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.001	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.134	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.007	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.068	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.138		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	1.000		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	0.0	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	119.3	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	96.1	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	64.4	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	74.2	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	47358165234353433		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275154731544		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712920		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342424		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275280560152		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.044	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.034	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.17	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.13	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.04	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.05	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.56	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.26	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.05	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237659914972168662		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	22.983	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	23.019	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.320	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.635	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.727	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.358	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.170	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.062	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.023	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.036	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52552.4566	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52552.4583	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52552.4550	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52552.4558	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52552.4574	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3362-301-5-0168-0471		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52552.4566	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.029	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09915	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5441	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75177	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7560	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05216332	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32792582	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237653000074363550		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992080	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831540	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237653000074362880		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912456		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.956	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.789	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.329	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.671	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.806	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.619	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.133	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.056	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.028	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.041	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.545	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.789	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.489	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.736	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.796	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.460	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.261	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.126	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.046	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.071	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.971	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.443	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.187	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.144	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.436	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.453	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.124	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.072	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.231	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	23.828	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	1.302	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.041	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.019	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.105	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.291		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.223		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.063		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	64.0	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	120.4	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	66.5	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	137.0	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	80.1	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397347593		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275154763784		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375176		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375176		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.039	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.035	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.10	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.02	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.01	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.08	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.01	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.01	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.192	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.785	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.302	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.661	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.793	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.711	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.140	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.057	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.024	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.039	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	51818.3941	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	51818.3957	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	51818.3924	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	51818.3932	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	51818.3949	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	1752-301-5-0161-0670		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	51818.3941	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.029	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09915	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5441	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75177	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7560	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05216332	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32792582	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237653000074363551		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992080	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831540	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237653000074362880		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	35253360001296		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.956	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.789	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.329	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.671	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.806	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.619	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.133	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.056	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.028	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.041	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.545	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.789	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.488	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.736	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.796	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.460	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.261	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.127	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.047	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.071	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.971	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.447	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.187	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.144	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.437	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.458	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.124	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.071	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.233	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	23.824	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	1.037	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.046	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.024	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.105	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.235		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.152		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.097		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	64.0	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	120.0	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	66.7	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	136.9	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	80.1	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397347601		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275154763792		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712912		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375184		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375184		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.039	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.035	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.10	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.02	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.01	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.08	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.01	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.01	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237653000074363550		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.192	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.785	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.301	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.661	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.792	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.711	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.140	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.057	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.024	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.039	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	51818.3941	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	51818.3957	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	51818.3924	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	51818.3932	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	51818.3949	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	1752-301-5-0161-0671		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	51818.3941	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.037	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09775	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5426	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75037	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7544	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05215760	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32793027	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237646549036630348		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992074	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831540	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237646549036630016		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	140806476398848		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.606	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	23.011	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.371	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.687	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.745	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.590	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.174	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.078	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.036	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.042	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	25.129	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.190	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.631	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.699	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.898	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.342	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.422	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.189	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.077	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.103	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	1.017	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.968	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.332	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.442	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	0.975	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	0.879	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.235	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.296	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.062	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.001	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.550	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.002	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.116	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.076		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.236		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.320		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.100		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.050		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	85.4	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	102.2	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	136.9	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	101.3	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	105.2	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9147936877445121		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275154731264		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712896		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375168		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275280592896		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.058	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.051	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.00	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.05	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.08	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.02	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.00	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.17	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.04	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.06	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.724	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	23.034	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.395	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.681	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.763	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.530	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.183	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.080	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.030	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.043	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	51133.2667	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	51133.2684	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	51133.2651	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	51133.2659	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	51133.2675	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	250-301-5-0209-0332		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	51133.2667	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.042	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09882	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5560	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75144	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7678	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05215831	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32792448	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237659756610978394		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992078	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831543	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237659756610977792		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	96972308552		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.064	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.760	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.261	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.615	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.855	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.402	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.142	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.050	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.025	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.043	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.070	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	24.462	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.524	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.668	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.951	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.491	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	1.052	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.112	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.039	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.064	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	0.363	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	0.903	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	0.990	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.104	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.364	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	0.083	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.225	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.097	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.074	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	1.196	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.003	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.000	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.000	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.012	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.143	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.147		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.258		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	1.000		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.100		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	102.8	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	132.8	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	52.5	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	70.7	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	70.3	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	201326665		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	335544392		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874840821832		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275213451336		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275213451336		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.023	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.027	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.01	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.13	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.02	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.04	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.01	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.01	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.00	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.249	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.856	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.278	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.618	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.859	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.480	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.160	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.051	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.021	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.041	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	4113		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52522.4405	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52522.4421	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52522.4388	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52522.4396	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52522.4413	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3325-301-6-0408-0602		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52522.4405	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.050	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10278	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5135	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75541	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7256	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05218839	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32792101	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666542115488272		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992095	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831532	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666542115487744		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912448		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.700	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.954	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.333	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.687	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.782	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.790	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.154	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.073	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.031	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.043	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	25.389	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.028	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.603	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.727	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.823	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.273	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.318	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.189	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.055	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.083	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.583	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.429	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.200	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.148	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.201	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.385	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.096	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.064	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.129	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.000	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.126	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.173	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.077	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.136	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.148		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.069		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.976		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.064		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	63.6	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	150.4	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	180.0	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	88.1	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	75.8	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388960001		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	268468224		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712896		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342400		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375168		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.044	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.052	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.07	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.02	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.06	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.00	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.03	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.03	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.183	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.928	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.276	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.621	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.714	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.753	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.164	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.074	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.028	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.042	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53298.4202	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53298.4219	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53298.4185	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53298.4194	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53298.4210	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4905-301-5-0302-0528		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53298.4202	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.055	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09684	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5534	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.74946	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7651	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05215042	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32793085	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237667131054948886		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992070	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831543	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237667131054948352		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	0		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68988043524		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u		mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g		mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r		mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i		mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z		mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u		mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g		mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r		mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i		mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z		mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u		mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g		mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r		mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i		mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z		mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u		mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g		mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r		mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i		mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z		mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.969	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	2.970	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	2.969	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	2.969	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z		arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u		arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g		arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r		arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i		arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z		arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u			[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g			[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r			[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i			[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z			[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u		deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g		deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r		deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i		deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z		deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	131461		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	268435844		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503599895806340		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342788		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342788		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	0		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	0		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	0		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u			[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g			[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r			[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i			[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z			[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.072	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.076	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.17	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.10	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.00	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.15	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.01	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.05	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u		mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g		mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r		mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i		mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z		mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u		mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g		mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r		mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i		mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z		mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	4113		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53351.1885	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53351.1901	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53351.1868	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53351.1876	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53351.1893	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	5042-301-6-0181-0534		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53351.1885	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.066	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10374	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5029	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75637	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7150	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05219578	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32792024	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666662398231164		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992099	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831529	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666662398230528		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68988043528		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.685	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	23.244	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.284	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.707	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.745	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.887	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.347	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.086	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.033	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.044	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.191	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.201	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.653	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.692	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.771	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	2.455	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.577	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.195	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.054	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.076	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.282	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.521	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.560	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.170	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.139	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.210	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	15.353	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.489	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.000	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.107	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.162	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.201		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.977		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.050		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	49.9	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	111.7	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	56.6	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	135.7	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	87.6	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397478665		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	9007199397347593		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342408		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342408		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.069	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.070	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.06	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.04	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.02	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.04	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.01	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.02	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.782	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	23.221	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.291	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.701	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.740	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.831	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.346	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.089	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.028	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.042	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	2		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53314.3280	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53314.3297	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53314.3264	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53314.3272	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53314.3289	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4933-301-5-0663-0636		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53314.3280	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.066	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10374	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5029	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75637	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7150	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05219578	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32792024	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666662398231165		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992099	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831529	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666662398230528		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	105622104310032		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.685	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	23.117	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.284	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.707	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.745	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.887	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.311	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.087	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.033	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.044	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.191	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.202	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.653	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.692	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.771	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	2.458	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.577	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.196	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.054	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.076	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.282	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.524	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.559	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.170	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.140	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.209	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	15.353	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.189	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.000	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.107	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.162	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.078		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.219		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.978		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.050		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	49.9	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	41.3	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	56.6	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	135.7	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	87.6	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	11258999211163921		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	70369155219729		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712912		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342416		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342416		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.069	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.070	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.06	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.02	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.02	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.04	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.30	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.02	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237666662398231164		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.781	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	23.083	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.291	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.701	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.740	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.831	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.309	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.089	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.028	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.042	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	2		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53314.3280	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53314.3297	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53314.3264	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53314.3272	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53314.3289	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4933-301-5-0663-0637		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53314.3280	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.067	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10366	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5377	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75629	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7498	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05218509	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32791367	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237656547714007794		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992099	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831538	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237656547714007040		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912200		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.844	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.881	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.267	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.640	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.817	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.684	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.150	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.051	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.027	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.038	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.910	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.959	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.338	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.750	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.871	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.205	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.280	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.103	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.043	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.071	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	0.100	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.391	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.079	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.001	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.173	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	0.043	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.293	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.169	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.038	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.188	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	7.960	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.190	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.101	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.064	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.087		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.197		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.248		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.907		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	134.9	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	160.0	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	39.2	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	105.1	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	73.9	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388975113		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146342408		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342408		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342408		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.029	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.029	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.11	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.06	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.04	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.06	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.06	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.06	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.902	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.897	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.243	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.611	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.802	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.733	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.158	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.053	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.022	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.035	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52171.3821	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52171.3838	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52171.3805	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52171.3813	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52171.3829	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2578-301-5-0110-0754		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52171.3821	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.067	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10366	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5377	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75629	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7498	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05218509	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32791367	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237656547714007795		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992099	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831538	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237656547714007040		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	35253360001040		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.844	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.881	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.267	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.640	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.817	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.684	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.150	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.052	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.027	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.038	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.915	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.959	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.338	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.750	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.871	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.207	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.280	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.103	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.043	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.072	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	0.100	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.392	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.079	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.001	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.177	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	0.043	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.294	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.170	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.039	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.195	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	9.940	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.191	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.101	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.099		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.200		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.449		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.241		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	134.3	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	160.0	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	39.2	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	71.6	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	73.9	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388975121		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146342416		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712912		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342416		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342416		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.029	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.029	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.11	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.06	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.04	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.06	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.06	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.06	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237656547714007794		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.902	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.897	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.243	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.611	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.802	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.733	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.158	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.053	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.022	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.035	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52171.3821	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52171.3838	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52171.3805	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52171.3813	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52171.3829	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2578-301-5-0110-0755		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52171.3821	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.069	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10388	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.4977	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75651	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7098	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05219793	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32792083	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237656594964480393		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992099	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831527	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237656594964480000		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	17661174092040		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.106	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.708	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.325	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.657	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.813	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.913	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.165	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.066	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.035	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.051	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.051	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.747	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.173	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.704	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.823	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.430	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.405	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.157	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.078	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.127	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	0.967	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.777	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.294	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.534	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.090	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.505	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.068	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.334	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.674	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.003	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.165	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.080	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.133	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.424		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.333		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.070		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.830		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.187		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	119.6	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	56.8	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	39.6	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	159.1	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	75.6	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397380361		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	411074568		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4521466959925256		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375176		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275280592904		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.041	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.041	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.08	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.04	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.07	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.00	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.14	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.04	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.03	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.361	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.686	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.282	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.598	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.763	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	1.015	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.172	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.065	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.027	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.052	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	24		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52173.3586	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52173.3603	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52173.3569	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52173.3578	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52173.3594	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2589-301-5-0199-0393		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52173.3586	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.069	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10388	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.4977	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75651	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7098	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05219793	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32792083	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237656594964480394		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992099	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831527	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237656594964480000		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	72180808328286480		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.150	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.708	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.325	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.657	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.813	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.928	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.165	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.067	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.036	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.052	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.051	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.750	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.173	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.700	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.821	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.431	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.406	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.158	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.079	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.127	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	0.967	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.778	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.296	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.514	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.090	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.505	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.074	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.356	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.666	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.001	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.164	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.080	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.133	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.374		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.058		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.838		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.072		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	120.8	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	56.9	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	39.5	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	159.0	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	75.5	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	83386962261606673		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	411074576		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4521466959925264		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375184		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375184		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.041	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.041	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.14	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.08	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.04	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.07	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.04	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.14	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.04	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.03	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237656594964480393		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.713	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.686	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.283	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.598	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.764	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	1.039	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.172	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.065	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.027	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.052	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	4113		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52173.3586	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52173.3603	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52173.3569	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52173.3578	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52173.3594	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2589-301-5-0199-0394		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52173.3586	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.069	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09559	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5535	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.74821	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7651	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05214487	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32793456	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237656513363182096		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992065	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831543	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237656513363181568		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	35253360001296		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.894	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.854	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.353	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.665	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.805	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.432	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.147	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.063	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.027	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.041	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	26.200	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.000	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.487	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.731	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.760	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.746	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.358	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.138	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.047	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.073	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.971	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.407	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.194	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.174	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.125	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.051	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	1.229	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.349	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.174	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.190	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.075	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.141	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	1.000		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.099		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.139		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.622		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.077		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	125.5	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	135.5	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	98.0	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	104.4	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	82.7	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397347601		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275154731280		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712912		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375184		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375184		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.055	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.042	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.04	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.22	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.05	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.09	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.21	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237656513363182095		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	26.142	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.857	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.281	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.602	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.737	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.378	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.159	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.063	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.022	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.035	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52170.4452	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52170.4469	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52170.4436	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52170.4444	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52170.4460	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2570-301-5-0246-0528		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52170.4452	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.069	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09559	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5535	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.74821	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7651	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05214487	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32793456	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237656513363182095		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992065	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831543	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237656513363181568		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912968		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.894	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.854	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.353	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.665	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.805	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.432	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.147	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.063	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.027	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.041	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	26.205	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.001	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.487	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.732	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.760	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.744	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.359	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.138	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.047	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.073	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.971	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.407	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	5.570	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.173	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.125	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	1.707	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	1.220	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.430	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.174	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.189	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.075	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.142	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	1.000		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.098		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.125		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.631		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.051		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	125.5	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	135.5	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	98.0	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	104.5	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	82.7	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397347593		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275154731272		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275280593416		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375176		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.055	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.042	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.04	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.22	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.05	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.09	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.21	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	26.142	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.857	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.281	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.602	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.737	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.378	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.159	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.063	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.022	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.035	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52170.4452	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52170.4469	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52170.4436	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52170.4444	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52170.4460	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2570-301-5-0246-0527		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52170.4452	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.070	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09799	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5817	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75061	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7934	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05214707	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32792191	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237657814735913305		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992075	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831550	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237657814735912960		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	69055152456		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.110	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.368	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.322	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.692	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.797	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.875	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.140	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.068	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.033	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.043	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	26.628	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.712	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.561	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.745	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.903	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.530	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.272	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.150	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.048	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.073	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.681	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.375	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.420	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.652	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.320	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.174	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.057	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.212	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	11.773	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.098	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.039	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.107	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.105	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	1.000		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.202		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.430		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.200		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	110.5	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	162.2	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	126.9	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	39.3	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	84.2	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199464620361		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275213484104		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874840854600		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275213484104		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275213484104		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.051	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.046	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.19	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.02	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.06	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.08	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.09	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.04	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.260	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.390	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.331	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.689	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.808	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.829	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.145	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.068	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.024	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.041	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52287.1392	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52287.1409	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52287.1376	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52287.1384	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52287.1401	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2873-301-5-0210-0345		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52287.1392	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.072	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09470	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5289	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.74733	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7406	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05214826	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32794197	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237667131055014219		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992061	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831536	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237667131055013888		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	0		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68988043524		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u		mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g		mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r		mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i		mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z		mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u		mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g		mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r		mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i		mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z		mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u		mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g		mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r		mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i		mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z		mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u		mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g		mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r		mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i		mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z		mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	2.970	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	2.970	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	2.970	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z		arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u		arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g		arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r		arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i		arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z		arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u			[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g			[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r			[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i			[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z			[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u		deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g		deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r		deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i		deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z		deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	131461		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	268435844		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773713284		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342788		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342788		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	0		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	0		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	0		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u			[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g			[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r			[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i			[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z			[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.072	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.079	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.18	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.08	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.04	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.14	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.04	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.00	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u		mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g		mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r		mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i		mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z		mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u		mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g		mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r		mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i		mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z		mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	48		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53351.1889	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53351.1905	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53351.1872	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53351.1881	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53351.1897	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	5042-301-6-0182-0331		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53351.1889	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.080	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10464	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5338	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75726	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7460	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05219051	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32791154	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666408998961865		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992103	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831537	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666408998961152		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68987912456		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.413	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.772	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.340	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.613	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.809	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.810	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.124	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.064	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.027	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.038	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.585	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.303	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.505	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.624	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.806	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.825	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.442	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.146	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.047	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.077	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.585	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	0.937	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.262	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.211	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.113	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.182	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.168	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.080	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.137	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	6.321	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.001	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.000	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.020	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.086	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.053		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.208		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.801		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	1.000		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	83.5	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	114.3	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	132.5	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	106.7	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	113.7	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199388984585		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275280560136		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375176		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275280592904		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.040	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.044	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.04	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.02	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.04	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.02	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.04	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.07	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.669	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.805	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.346	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.617	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.799	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.839	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.134	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.065	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.023	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.037	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53288.3756	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53288.3773	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53288.3739	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53288.3748	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53288.3764	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4874-301-5-0721-0713		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53288.3756	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.080	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10464	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5338	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75726	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7460	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05219051	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32791154	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666408998961866		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992103	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831537	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666408998961152		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	35253360001808		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.413	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.772	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.340	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.613	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.809	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.810	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.124	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.064	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.027	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.038	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.550	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.287	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.505	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.624	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.802	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.824	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.437	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.145	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.047	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.077	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	7.361	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	0.929	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.261	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.192	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	6.258	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.174	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.167	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.076	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	1.389	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.677	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.000	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.001	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.014	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.087	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.150		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.066		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.452		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.980		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.988		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	14.3	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	114.3	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	132.6	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	106.0	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	112.4	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	11258999202702609		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275280592912		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773745680		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375184		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275280593424		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.040	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.044	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.04	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.02	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.04	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.02	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.04	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.07	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237666408998961865		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.670	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.807	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.348	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.617	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.799	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.836	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.134	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.065	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.023	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.037	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53288.3756	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53288.3773	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53288.3739	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53288.3748	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53288.3764	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4874-301-5-0721-0714		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53288.3756	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.084	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10143	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5933	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75404	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.8053	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05215872	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32790944	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666340275159419		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992089	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831554	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666340275159040		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	79792570696		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.300	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.445	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.271	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.681	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.927	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.931	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.120	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.059	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.030	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.051	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.705	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.934	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.455	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.755	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.973	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.340	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.314	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.130	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.050	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.081	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.969	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.252	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.368	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.542	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.757	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.204	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.197	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.106	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.190	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.006	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.000	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.023	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.131	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.119		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.183		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.079		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.838		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.116		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	61.1	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	58.4	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	44.5	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	74.5	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	76.7	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199464587593		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	335544392		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874840821832		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275213484104		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275213451336		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.043	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.040	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.08	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.02	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.00	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.01	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.15	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.13	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.08	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.471	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.467	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.287	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.686	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.921	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.843	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.125	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.061	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.027	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.047	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53272.4486	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53272.4503	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53272.4470	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53272.4478	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53272.4495	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4858-301-5-0655-0379		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53272.4486	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.084	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09429	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5485	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.74692	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7601	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05214064	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32793935	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663527611728454		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992060	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831541	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663527611727872		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	0		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	35219000262916		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u		mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g		mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r		mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i		mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z		mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u		mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g		mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r		mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i		mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z		mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u		mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g		mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r		mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i		mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z		mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u		mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g		mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r		mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i		mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z		mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	2.970	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	2.970	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	2.970	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z		arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u		arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g		arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r		arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i		arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z		arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u			[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g			[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r			[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i			[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z			[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u		deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g		deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r		deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i		deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z		deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	389		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	288230651298054532		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	292734800681238948		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	288230651298054532		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342788		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	0		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	0		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	0		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u			[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g			[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r			[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i			[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z			[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.396	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.396	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.01	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.71	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.28	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-1.07	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.04	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-1.13	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.53	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.98	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u		mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g		mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r		mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i		mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z		mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u		mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g		mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r		mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i		mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z		mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	4113		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52935.3431	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52935.3448	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52935.3415	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52935.3423	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52935.3440	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4203-301-6-0705-0582		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52935.3431	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.088	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09372	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.4945	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.74635	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7060	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05215419	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32795160	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666301627007601		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992057	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831526	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666301627006976		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68988043528		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.557	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.785	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.243	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.667	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.794	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.750	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.111	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.045	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.024	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.033	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.606	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.820	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.463	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.800	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.798	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.964	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.240	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.117	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.042	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.057	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.188	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.204	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.109	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.296	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.168	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.099	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	1.732	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.113	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.046	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.154	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.067	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.126	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.104		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.234		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.880		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.147		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	129.9	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	180.0	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	39.8	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	109.9	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	71.6	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9008298909106441		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146342408		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342408		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342408		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.024	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.025	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.04	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.05	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.04	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.00	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.565	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.777	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.247	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.661	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.773	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.503	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.116	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.048	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.021	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.032	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53270.3986	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53270.4002	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53270.3969	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53270.3977	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53270.3994	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4849-301-5-0755-0625		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53270.3986	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.088	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09372	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.4945	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.74635	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7060	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05215419	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32795160	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666301627007602		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992057	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831526	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666301627006976		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	35253360132368		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.557	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.785	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.243	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.667	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.794	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.750	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.111	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.045	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.024	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.033	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.607	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.820	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.463	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.798	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.797	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.964	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.240	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.117	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.043	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.057	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.188	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.204	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.108	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.299	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.168	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.099	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.040	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.113	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.045	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.154	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.067	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.126	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.100		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.200		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.885		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.050		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	129.8	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	180.0	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	39.8	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	109.9	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	71.6	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	11260098722791697		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146342416		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712912		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342416		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342416		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.024	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.025	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.04	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.05	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.04	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.00	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237666301627007601		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.565	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.777	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.247	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.661	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.774	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.503	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.116	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.048	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.021	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.032	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53270.3986	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53270.4002	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53270.3969	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53270.3977	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53270.3994	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4849-301-5-0755-0626		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53270.3986	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.093	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10555	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5324	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75817	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7445	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05219496	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32790913	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663544252564014		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992106	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831537	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663544252563456		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	234344284936		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.362	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.900	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.250	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.668	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.778	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.306	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.139	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.056	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.031	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.038	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.398	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.073	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.562	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.736	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.903	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.706	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.260	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.118	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.038	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.059	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	1.392	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	4.584	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	0.930	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.073	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.118	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	1.215	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.054	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.057	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.080	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	3.195	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.101	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.000	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.003	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.027	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.147		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.091		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.664		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.104		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	145.9	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	44.1	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	84.5	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	71.9	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	124.6	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397487113		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146343688		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342408		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342408		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.031	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.030	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.13	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.03	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.21	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.06	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.04	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.517	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.911	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.266	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.664	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.793	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.485	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.146	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.057	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.023	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.037	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52936.3346	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52936.3362	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52936.3329	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52936.3337	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52936.3354	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4207-301-5-0672-0558		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52936.3346	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.093	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10555	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5324	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75817	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7445	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05219496	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32790913	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663544252564015		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992106	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831537	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663544252563456		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	105622104310616		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.048	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.900	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.250	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.668	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.778	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.333	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.139	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.056	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.031	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.038	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	23.398	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.073	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.562	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.736	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.903	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.706	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.260	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.118	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.038	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.059	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	1.391	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	4.584	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	0.930	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.072	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.118	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	1.213	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.054	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.056	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.081	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	1.560	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.112	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.001	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.002	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.052		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.080		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.515		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.050		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	146.4	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	44.7	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	84.4	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	43.5	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	131.6	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	11330467735413273		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146343704		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712920		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375192		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342424		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.031	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.030	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.45	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.13	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.03	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.22	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.21	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.06	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.04	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237663544252564014		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.131	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.911	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.266	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.667	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.793	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.370	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.146	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.057	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.023	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.037	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52936.3346	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52936.3362	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52936.3329	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52936.3337	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52936.3354	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4207-301-5-0672-0559		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52936.3346	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.099	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10054	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.6125	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75315	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.8244	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05214911	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32790835	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237657587099763517		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992086	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831559	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237657587099762688		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68988043528		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.785	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.640	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.301	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.674	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.799	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.853	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.126	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.054	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.026	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.038	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	25.417	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.226	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.485	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.783	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.861	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.203	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.363	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.119	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.041	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.067	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.584	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	0.887	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.129	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.109	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.433	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.111	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.097	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	1.497	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.318	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.002	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.003	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.000	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.012	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.001	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.061		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.291		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.377		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.329		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	65.2	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	122.2	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	70.5	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	135.3	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	40.2	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9008298900718857		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146342408		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375176		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375176		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.037	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.034	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.13	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.01	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.04	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.07	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.06	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.797	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.695	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.284	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.659	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.799	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.518	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.139	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.056	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.022	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.036	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52261.2584	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52261.2600	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52261.2567	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52261.2575	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52261.2592	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2820-301-5-0166-0829		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52261.2584	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.099	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10054	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.6125	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75315	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.8244	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05214911	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32790835	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237657587099763518		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992086	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831559	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237657587099762688		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	35253360132368		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.785	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.640	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.301	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.674	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.799	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.853	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.126	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.054	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.026	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.038	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	25.416	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.220	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.484	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.783	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.861	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.204	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.361	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.119	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.041	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.067	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.584	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	0.884	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.129	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.109	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.429	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.108	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.097	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	1.521	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.317	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.000	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.003	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.000	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.012	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.085		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.292		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.351		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.317		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	65.1	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	122.2	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	70.5	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	135.3	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	40.1	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	11260098714404113		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275146342416		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712912		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375184		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146375184		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.037	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.034	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.13	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.01	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.01	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.04	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.07	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.06	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237657587099763517		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.797	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.695	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.284	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.659	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.799	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.518	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.139	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.056	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.022	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.036	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	32		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52261.2584	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52261.2600	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52261.2567	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52261.2575	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52261.2592	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2820-301-5-0166-0830		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52261.2584	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.104	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10175	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.4175	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75440	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.6295	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05221244	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32794279	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237660009494348093		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992091	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831505	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237660009494347776		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68988043528		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.019	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.607	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.293	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.683	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.857	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.915	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.122	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.064	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.031	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.050	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	25.826	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.080	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.486	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.819	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.857	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.898	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.307	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.130	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.051	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.086	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.584	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	0.901	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.015	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.144	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.584	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.103	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.120	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.081	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.321	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	1.177	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.038	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.000	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.138	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	1.000		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.076		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.181		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.451		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.699		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	86.2	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	137.3	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	109.6	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	59.1	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	99.5	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199389091081		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	411041800		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375176		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342408		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.041	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.033	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.01	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.04	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.09	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.15	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.07	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.09	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.352	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.703	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.307	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.691	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.854	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.810	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.137	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.065	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.028	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.050	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52557.4311	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52557.4327	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52557.4294	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52557.4302	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52557.4319	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3384-301-5-0670-0317		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52557.4311	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.104	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10175	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.4175	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75440	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.6295	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05221244	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32794279	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237660009494348094		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992091	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831505	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237660009494347776		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	35253360132368		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.019	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.607	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.293	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.683	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.857	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.915	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.122	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.064	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.031	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.050	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	25.827	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.080	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.486	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.819	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.857	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.898	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.307	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.130	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.051	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.086	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.584	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	0.902	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.015	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.144	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.584	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.103	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.120	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.081	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.321	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	1.521	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.042	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.001	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.021	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.137	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	1.000		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.057		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.177		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.432		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.700		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	86.0	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	137.3	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	109.6	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	166.7	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	99.5	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199389091089		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	411041808		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712912		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375184		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342416		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.041	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.033	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.01	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.04	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.09	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.15	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.07	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.09	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237660009494348093		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.352	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.703	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.307	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.692	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.854	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.810	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.137	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.065	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.028	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.050	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52557.4311	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52557.4327	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52557.4294	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52557.4302	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52557.4319	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3384-301-5-0670-0318		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52557.4311	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.105	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10005	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.6199	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75266	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.8318	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05214475	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32790834	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237657587099828538		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992084	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831561	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237657587099828224		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68988044040		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.351	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.630	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.282	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.672	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.793	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.684	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.125	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.054	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.027	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.036	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.879	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.319	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.471	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.765	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.869	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.477	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.391	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.117	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.040	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.066	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.585	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	0.857	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.126	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	4.574	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.360	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.107	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.101	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.053	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.265	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.001	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.000	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.070	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.037	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.059		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.103		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.212		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.351		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.426		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	135.4	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	120.9	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	139.3	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	134.2	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	73.7	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199389091081		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	402653192		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375688		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342408		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.037	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.034	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.15	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.02	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.04	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.07	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.03	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.06	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.405	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.694	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.272	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.660	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.796	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.669	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.139	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.056	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.022	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.036	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52261.2588	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52261.2604	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52261.2571	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52261.2580	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52261.2596	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2820-301-5-0167-0314		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52261.2588	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.105	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10005	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.6199	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75266	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.8318	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05214475	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32790834	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237657587099828539		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992084	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831561	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237657587099828224		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	35253360132880		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.351	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.630	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.282	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.672	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.793	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.684	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.125	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.054	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.027	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.036	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.878	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.318	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.471	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.765	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.869	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.478	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.391	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.117	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.040	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.066	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.585	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	0.856	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.126	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	4.578	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.360	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.107	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.101	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.054	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.265	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.001	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.001	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.069	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.037	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.000	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.095		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.111		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.201		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.350		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.434		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	135.4	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	120.9	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	139.3	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	134.2	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	73.7	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199389091089		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	402653200		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712912		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375696		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342416		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.037	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.034	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.15	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.02	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.04	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.07	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.03	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.06	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237657587099828538		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.405	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.694	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.272	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.660	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.796	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.669	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.139	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.056	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.022	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.036	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52261.2588	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52261.2604	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52261.2571	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52261.2580	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52261.2596	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2820-301-5-0167-0315		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52261.2588	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.109	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09564	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.6083	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.74825	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.8199	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05212881	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32792370	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237645879038771493		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992065	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831558	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237645879038771200		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	69055021384		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	23.433	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.987	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.278	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.704	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.827	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.569	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.195	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.062	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.029	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.051	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.529	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.935	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.469	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.727	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.908	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.509	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.318	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.143	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.052	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.094	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	0.081	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.969	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.316	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.599	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.584	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	1.035	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.154	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.145	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.322	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	1.363	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	1.253	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.001	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.037	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.551		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.541		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.050		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	110.1	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	119.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	97.5	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	70.4	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	137.7	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199456067657		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275221872968		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874840821832		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275213451336		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275213451336		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.044	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.044	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.05	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.03	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.04	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.29	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.04	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.07	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	23.396	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.980	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.295	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.707	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.835	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.559	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.196	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.064	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.029	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.051	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	51075.4247	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	51075.4264	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	51075.4231	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	51075.4239	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	51075.4256	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	94-301-5-0469-0293		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	51075.4247	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.110	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10232	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.6164	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75493	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.8284	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05215577	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32790230	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237660241922098150		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992093	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831560	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237660241922097152		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	0		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	316659617890636		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u		mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g		mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r		mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i		mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z		mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u		mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g		mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r		mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i		mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z		mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u		mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g		mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r		mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i		mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z		mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u		mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g		mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r		mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i		mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z		mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	2.970	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	2.970	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	2.970	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z		arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u		arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g		arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r		arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i		arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z		arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u			[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g			[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r			[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i			[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z			[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u		deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g		deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r		deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i		deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z		deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	288230376151843277		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	288230376151712205		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	288230376151843277		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	292734250925949420		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	288230376151712205		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	0		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	0		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	0		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u			[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g			[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r			[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i			[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z			[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.400	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.400	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.03	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.02	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.02	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.02	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	-0.02	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.02	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u		mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g		mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r		mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i		mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z		mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u		mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g		mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r		mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i		mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z		mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	4113		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52578.3151	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52578.3167	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52578.3134	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52578.3142	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52578.3159	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	3438-301-6-0100-0998		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52578.3151	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.112	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10654	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5493	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75916	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7616	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05219428	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32790288	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663505597203118		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992111	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831541	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663505597202432		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68988043520		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.024	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.657	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.344	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.712	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.766	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.822	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.124	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.063	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.027	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.043	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.900	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.434	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.439	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.789	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.742	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.942	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.229	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.151	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.055	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.088	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.343	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.122	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.334	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.224	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	4.435	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.287	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.001	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.456	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.104	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.033	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.082	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.058		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.081		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	1.000		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.712		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	108.5	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	62.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	106.2	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	68.4	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	103.3	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199397478657		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275154731264		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712896		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375168		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342400		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.039	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.035	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.03	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.01	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.06	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.07	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.11	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.06	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.06	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.139	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.609	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.330	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.690	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.734	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.811	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.126	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.065	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.025	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.040	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52934.3385	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52934.3401	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52934.3368	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52934.3376	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52934.3393	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4198-301-5-0662-0686		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52934.3385	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.112	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10691	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.5073	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75954	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.7195	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05220841	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32791000	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666383215264233		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992112	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831530	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666383215263744		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	0		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964754180		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u		mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g		mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r		mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i		mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z		mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u		mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g		mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r		mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i		mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z		mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u		mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g		mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r		mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i		mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z		mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u		mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g		mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r		mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i		mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z		mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	2.970	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	2.970	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	2.971	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z		arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u		arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g		arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r		arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i		arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z		arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u			[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g			[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r			[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i			[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z			[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u		deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g		deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r		deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i		deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z		deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	131461		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	389		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	292734250925425060		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342788		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342788		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	0		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	0		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	0		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u			[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g			[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r			[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i			[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z			[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.065	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.062	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.09	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.11	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.11	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.06	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.09	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.10	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.01	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.03	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u		mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g		mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r		mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i		mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z		mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u		mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g		mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r		mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i		mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z		mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	32		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53286.4175	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53286.4191	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53286.4158	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53286.4166	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53286.4183	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.5		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4868-301-5-0509-0489		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53286.4175	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.116	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09641	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.6218	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.74902	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.8335	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05212817	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32791878	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663204933829342		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992068	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831562	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663204933828608		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	79725461768		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.396	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.848	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.328	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.635	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.820	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.657	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.152	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.062	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.028	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.041	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.839	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.540	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.396	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.745	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.789	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.536	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.211	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.125	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.047	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.078	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.584	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.285	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.177	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.529	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.314	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.057	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.167	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.003	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	1.358	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.127	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.005	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.133	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.075		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.131		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.083		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.872		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	73.7	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	40.4	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	160.5	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	111.2	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	106.1	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9008298900718857		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275154731272		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342408		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342408		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.036	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.038	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.04	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.20	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.07	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.04	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.04	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.11	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.13	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.660	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.820	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.297	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.613	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.782	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.517	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.157	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.061	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.024	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.041	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52908.4065	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52908.4081	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52908.4048	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52908.4057	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52908.4073	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4128-301-5-0423-0734		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52908.4065	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.116	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09641	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.6218	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.74902	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.8335	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05212817	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32791878	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663204933829343		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992068	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831562	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663204933828608		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	35255507620112		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.396	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.848	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.328	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.635	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.820	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.657	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.152	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.062	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.028	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.040	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	24.839	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.540	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.396	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.746	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.789	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.536	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.212	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.125	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.048	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.078	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	4.584	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.285	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.177	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.529	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.314	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.057	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.167	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.002	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	1.356	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.127	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.010	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.133	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.053		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.147		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.058		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.872		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	73.6	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	40.4	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	160.5	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	111.2	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	106.1	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9008298900718865		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	2252074968416528		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712912		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342416		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146477584		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.036	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.038	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.04	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.20	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.07	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.04	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.04	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.11	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.13	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237663204933829342		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.660	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.820	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.297	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.613	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.782	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.517	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.157	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.061	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.024	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.041	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	32		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52908.4065	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52908.4081	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52908.4048	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52908.4057	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52908.4073	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4128-301-5-0423-0735		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52908.4065	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.118	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10702	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.4822	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75966	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.6944	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05221639	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32791453	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666516342276429		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992113	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831523	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666516342276096		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	69055021384		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.768	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.659	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.262	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.616	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.805	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	1.043	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.170	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.073	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.028	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.044	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.984	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.647	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.428	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.668	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.990	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	2.055	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.267	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.158	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.049	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.091	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	0.320	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.424	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.641	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.584	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	1.485	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.194	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.116	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.101	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.672	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.018	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.067	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.054	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.122	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.337		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.145		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.267		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.393		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.054		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	151.9	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	90.8	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	97.6	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	109.5	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	78.0	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	18014398710808649		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	45036271495545160		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874849210440		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275213451336		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275213484104		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.060	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.054	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.05	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.04	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.07	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.05	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.12	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.08	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.12	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.056	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.638	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.257	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.609	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.802	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.989	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.171	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.073	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.027	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.044	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	2049		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53296.3705	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53296.3722	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53296.3689	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53296.3697	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53296.3713	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.4		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4899-301-5-0250-0333		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53296.3705	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.122	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09481	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.6150	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.74742	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.8266	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05212318	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32792485	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237653013529952847		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992062	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831560	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237653013529952256		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	69055156552		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	24.230	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.974	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.337	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.655	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.795	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	1.098	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.195	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.074	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.028	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.043	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	22.345	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.810	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.343	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.791	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.831	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	3.584	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.422	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.167	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.062	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.108	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	0.100	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.608	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.364	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.128	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	0.051	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.288	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.071	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.108	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	29.673	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	2.308	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.199	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.000	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.001	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.050		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.064		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.745		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.086		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	155.9	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	116.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	130.8	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	68.4	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	107.4	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9007199456067657		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	209879369		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874840821832		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275213619272		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275213451336		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.064	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.056	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.01	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.01	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.07	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.01	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.04	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.03	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.05	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.03	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	24.972	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.914	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.279	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.617	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.763	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	1.191	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.208	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.075	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.027	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.044	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	51819.4795	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	51819.4812	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	51819.4779	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	51819.4787	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	51819.4803	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	1755-301-6-0677-0591		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	51819.4795	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.122	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10010	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.3932	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75276	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.6051	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05221239	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32795242	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666499168108997		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992084	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831498	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666499168108544		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964754176		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	26.583	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.880	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.739	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.767	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.852	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	1.028	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.243	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.330	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.048	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.046	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	26.857	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	23.192	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.758	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.815	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	19.070	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.572	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.530	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.593	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.092	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.094	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	4.585	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.492	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.362	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.324	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.091	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.069	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.242	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	1.486	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.105	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.099	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.999		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.050		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.195		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.150		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	67.2	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	89.2	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	113.6	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	152.0	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	81.7	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9008298909106433		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	9007199397347585		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	9007199388960001		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146375168		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	4503874773712896		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	3		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	3		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	0.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	0.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.069	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.076	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.04	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.03	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.03	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.00	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	0.00	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.02	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.03	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.01	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	0.00	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	26.710	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.899	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.738	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.755	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.826	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.364	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.254	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.339	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.048	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.041	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53294.4236	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53294.4253	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53294.4219	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53294.4228	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53294.4244	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.3		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4895-301-5-0337-0453		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53294.4236	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.126	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09833	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.6403	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75093	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.8521	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05213113	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32790948	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237657071703687815		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992076	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831567	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237657071703687168		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68988043528		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.593	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.822	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.280	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.645	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.826	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.768	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.122	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.051	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.026	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.037	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	26.254	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.913	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.332	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.702	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.878	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.663	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.260	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.103	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.041	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.070	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.159	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	0.994	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	0.910	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	0.906	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.285	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.144	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	1.583	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.055	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.072	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.001	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.102	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.010	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.105	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	1.000		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.125		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.199		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.642		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.099		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	94.4	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	123.2	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	46.3	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	72.0	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	72.8	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9008298909106441		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	268435464		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342408		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342408		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.024	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.023	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.04	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.07	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.03	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.05	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.05	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.02	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.05	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.805	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.858	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.250	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.611	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.776	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.425	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.136	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.052	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.022	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.035	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52224.3387	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52224.3403	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52224.3370	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52224.3378	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52224.3395	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2700-301-5-0166-0647		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52224.3387	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.126	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09833	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.6403	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75093	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.8521	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05213113	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32790948	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237657071703687816		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992076	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831567	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237657071703687168		The field this object is in (meta.note) (ID_FIELD)
mode	2		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	35253360132368		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.593	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.822	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.280	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.645	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.826	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.768	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.122	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.051	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.026	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.037	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	26.250	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.907	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.332	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.702	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.878	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	0.666	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.258	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.103	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.041	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.070	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	1.170	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	0.993	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	0.911	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	0.907	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.299	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.144	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	1.545	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.055	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.072	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	0.001	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.102	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.009	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.105	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	1.000		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.086		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.180		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.556		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.050		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	94.5	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	123.2	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	46.3	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	72.0	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	72.8	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9008298909106449		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	268435472		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712912		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342416		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275146342416		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	1.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.024	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.023	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.04	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.07	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.03	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.05	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.05	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.02	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.05	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	1237657071703687815		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.805	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.859	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.250	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.611	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.776	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.425	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.136	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.052	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.022	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.035	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	1025		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match	0		[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa	0.00	mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec	0.00	mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr	0.00	mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr	0.00	mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa	0.00	mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec	0.00	mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit	0		[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O	0.0		[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E	0.0		Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J	0.0		Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F	0.0		Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N	0.0		Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52224.3387	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52224.3403	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52224.3370	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52224.3378	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52224.3395	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2700-301-5-0166-0648		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52224.3387	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.134	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10311	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.6372	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75571	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.8492	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05215307	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32789590	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237657871107359157		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992096	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831566	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237657871107358720		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	0		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	316666060341580		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u		mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g		mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r		mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i		mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z		mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u		mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g		mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r		mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i		mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z		mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u		mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g		mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r		mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i		mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z		mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u		mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g		mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r		mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i		mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z		mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.969	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	2.970	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	2.970	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	2.970	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z		arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u		arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g		arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r		arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i		arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z		arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u			[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g			[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r			[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i			[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z			[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	-9999.0	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	-9999.0	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	-9999.0	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	-9999.0	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	-9999.0	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	288230376151843277		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	288230651298054636		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	288230376151843277		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	292734250926080492		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	288230651298578924		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	0		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	0		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	0		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u			[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g			[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r			[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i			[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z			[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.400	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.400	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.02	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	-0.32	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	-0.02	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	-0.00	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.13	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.02	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.38	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	-0.01	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.00	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.05	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u		mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g		mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r		mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i		mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z		mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u		mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g		mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r		mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i		mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z		mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	4113		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52288.1387	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52288.1403	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52288.1370	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52288.1379	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52288.1395	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	2886-301-6-0210-0437		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52288.1387	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.135	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.10062	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.3814	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.75328	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.5933	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05221820	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32795318	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237666499168043568		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992086	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831495	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237666499168043008		The field this object is in (meta.note) (ID_FIELD)
mode	4		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	0		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	281543964754180		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u		mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g		mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r		mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i		mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z		mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u		mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g		mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r		mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i		mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z		mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u		mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g		mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r		mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i		mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z		mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u		mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g		mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r		mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i		mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z		mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.971	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.970	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	2.970	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	2.971	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	2.970	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i		arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z		arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u		arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g		arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r		arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i		arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z		arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u			[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g			[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r			[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i			[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z			[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u		deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g		deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r		deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i		deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z		deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	131461		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	389		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	389		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342788		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	4503874773713284		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	0		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	0		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	0		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	0		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u			[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g			[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r			[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i			[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z			[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.069	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.072	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	-0.00	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.02	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.01	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.13	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	-0.00	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.01	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	0.00	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	0.04	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.00	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u		mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g		mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r		mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i		mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z		mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u		mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g		mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r		mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i		mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z		mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	32		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	1		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	53294.4232	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	53294.4249	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	53294.4215	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	53294.4224	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	53294.4240	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.10+004953.3		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4895-301-5-0336-0560		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	53294.4232	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)

Column	Value		Explain   (UCD)
_r	0.142	arcsec	Distance from center (044.992081+00.831532)[ICRS], at Epoch of catalog (MJD) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	02 59 58.09469	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 49 53.6382	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 23.74729	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	+00 38 00.8498	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.05211572	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.32792068	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)
objID	1237663204933894482		(i) SDSS unique object identifier (1) (links to online SDSS-DR16 data) (Note)   (meta.id;meta.main) (ID_MAIN)
ra	044.992061	deg	(i) Right Ascension of the object (ICRS) at Epoch="MJD" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	+00.831566	deg	(i) Declination of the object (ICRS) at Epoch="MJD" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
fieldID	1237663204933894144		The field this object is in (meta.note) (ID_FIELD)
mode	3		[1/4] PhotoMode (1=primary, 2=secondary, 3=family, 4=outside) (meta.code.class) (CLASS_CODE)
type	6		[0/8] Type of object (3=galaxy, 6=star) (type) (Note 2)   (src.class) (CLASS_OBJECT)
clean	0		[0/1] Clean photometry flag (1=clean; 0=unclean) (meta.code) (CODE_MISC)
flags	68988043528		Photo Object Attribute flags (Note 3)   (meta.code.error) (CODE_MISC)
psfMag_u	25.510	mag	(i) [4/35] PSF magnitude in u band (psfMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMag_g	22.807	mag	[3.7/37] PSF magnitude in g band (psfMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMag_r	21.318	mag	[3.8/36] PSF magnitude in r band (psfMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMag_i	19.628	mag	[2.6/34] PSF magnitude in i band (psfMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMag_z	18.811	mag	[3.8/33.3] PSF magnitude in z band (psfMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_u	0.725	mag	[1.5e-5/100] Mean error on upmag (psfMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_g	0.149	mag	Mean error on gpmag (psfMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_r	0.060	mag	Mean error on rpmag (psfMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_i	0.028	mag	Mean error on ipmag (psfMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
psfMagErr_z	0.042	mag	Mean error on zpmag (psfMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMag_u	25.640	mag	[-0.4/47.2] Petrosian magnitude in u band (petroMag_u) (Note 4)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMag_g	22.577	mag	[3.7/48] Petrosian magnitude in g band (petroMag_g) (Note 4)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMag_r	21.357	mag	[1.3/48.6] Petrosian magnitude in r band (petroMag_r) (Note 4)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMag_i	19.742	mag	[2.6/48.4] Petrosian magnitude in i band (petroMag_i) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMag_z	18.780	mag	[-2.9/45.1] Petrosian magnitude in z band (petroMag_z) (Note 4)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_u	1.111	mag	[1e-7/100] Mean error in uPmag (petroMagErr_u) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_g	0.227	mag	[9.1e-9/100] Mean error in gPmag (petroMagErr_g) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_r	0.125	mag	Mean error in rPmag (petroMagErr_r) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_i	0.049	mag	Mean error in iPmag (petroMagErr_i) (Note 4)   (stat.error;phot.mag) (ERROR)
petroMagErr_z	0.081	mag	Mean error in zPmag (petroMagErr_z) (Note 4)   (stat.error;phot.mag) (ERROR)
petroRad_u	2.971	arcsec	[1.2e-6/261] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRad_g	2.017	arcsec	[2.3e-6/261] Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRad_r	1.337	arcsec	[4.9e-6/260] Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRad_i	1.176	arcsec	[2.2e-6/263] Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRad_z	1.531	arcsec	[8.3e-7/261] Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u	-1000.000	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_u) (stat.error) (ERROR)
petroRadErr_g	0.404	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_g) (stat.error) (ERROR)
petroRadErr_r	0.338	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
petroRadErr_i	0.054	arcsec	[-1000/259] Mean error in rPrad (petroRadErr_i) (stat.error) (ERROR)
petroRadErr_z	0.167	arcsec	[-1000/257] Mean error in rPrad (petroRadErr_z) (stat.error) (ERROR)
deVRad_u	0.071	arcsec	[0/257] De Vaucouleurs fit radius u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
deVRad_g	1.337	arcsec	[0/238] De Vaucouleurs fit radius g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
deVRad_r	0.156	arcsec	[0/238] De Vaucouleurs fit radius r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
deVRad_i	0.003	arcsec	[0/232] De Vaucouleurs fit radius i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
deVRad_z	0.136	arcsec	[0/238] De Vaucouleurs fit radius z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
deVAB_u	0.999		[0.05/1] De Vaucouleurs fit b/a u band (deVAB_u) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_g	0.050		[0.05/1] De Vaucouleurs fit b/a g band (deVAB_g) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_r	0.098		[0.05/1] De Vaucouleurs fit b/a r band (deVAB_r) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_i	0.155		[0.05/1] De Vaucouleurs fit b/a i band (deVAB_i) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVAB_z	0.882		[0.05/1] De Vaucouleurs fit b/a z band (deVAB_z) (phys.size.axisRatio) (PHYS_AXIS-RATIO)
deVPhi_u	69.6	deg	[-10105/271] Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
deVPhi_g	40.6	deg	[-10105/271] Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
deVPhi_r	157.6	deg	[-10105/271] Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
deVPhi_i	110.7	deg	[-10105/271] Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
deVPhi_z	105.5	deg	[-10105/271] Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
flags_u	9008298909106441		Detection flags u band (flags_u) (Note 3)   (meta.code) (CODE_MISC)
flags_g	275280560136		Detection flags g band (flags_g) (Note 3)   (meta.code) (CODE_MISC)
flags_r	4503874773712904		Detection flags r band (flags_r) (Note 3)   (meta.code) (CODE_MISC)
flags_i	275146342408		Detection flags i band (flags_i) (Note 3)   (meta.code) (CODE_MISC)
flags_z	275280592904		Detection flags z band (flags_z) (Note 3)   (meta.code) (CODE_MISC)
type_u	6		[0/8] Phototype in u band (6=Star ; 3=galaxy) (type_u) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_g) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	6		[0/8] Phototype in r band (6=Star ; 3=galaxy) (type_r) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		[0/8] Phototype in i band (6=Star ; 3=galaxy) (type_i) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	6		[0/8] Phototype in z band (6=Star ; 3=galaxy) (type_z) (Note 2)   (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_u	1.0		[0/1] 0=notStar 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_g	0.0		[0/1] 0=notStar 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_r	1.0		[0/1] 0=notStar 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_i	1.0		[0/1] 0=notStar 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
probPSF_z	1.0		[0/1] 0=notStar 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
raErr	0.036	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.039	arcsec	[0/22795] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
offsetRa_u	0.04	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_g	0.26	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_i	0.09	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetRa_z	0.12	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.03	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_g	-0.03	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_i	-0.09	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
offsetDec_z	-0.14	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
specObjID	0		(i) Pointer to the spectrum of object or 0 (specObjID) (Note 6)   (meta.id) (ID_ALTERNATIVE)
u	25.891	mag	(i) [4/37.3] Model magnitude in u filter AB scale (u) (Note 7)   (phot.mag;em.opt.U) (PHOT_SDSS_U)
g	22.781	mag	(i) [3.7/39.6] Model magnitude in g filter AB scale (g) (Note 7)   (phot.mag;em.opt.B) (PHOT_SDSS_G)
r	21.275	mag	(i) [3.8/40.4] Model magnitude in r filter AB scale (r) (Note 7)   (phot.mag;em.opt.R) (PHOT_SDSS_R)
i	19.596	mag	(i) [2.6/39.5] Model magnitude in i filter AB scale (i) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_I)
z	18.766	mag	(i) [3.5/37.2] Model magnitude in z filter AB scale (z) (Note 7)   (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_u	0.441	mag	[8.9e-8/3444] Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
err_g	0.155	mag	[3.8e-8/5955] Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
err_r	0.060	mag	[5.2e-8/915] Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
err_i	0.024	mag	[0/634] Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
err_z	0.041	mag	[9.4e-8/3529] Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
resolveStatus	8		[0/4145] Decimal status (resolveStatus) (Note 5)   (meta.code) (CODE_MISC)
spec_instrument			Spectral instrument used ("SDSS" or "BOSS") (spec_instrument) (Note 6)   (meta.id;instr) (INST_ID)
spec_sourceType			Source type (spec_sourceType) (6) (Note 8)   (src.class) (CLASS_OBJECT)
spec_z			(i) [-0.012/7.06] Spectroscopic final redshift (when SpObjID>0) (spec_z) (Note 6)   (src.redshift) (REDSHIFT_HC)
spec_zErr			[-6/30689] Mean error on zsp (negative for bad fit) (spec_zErr) (Note 6)   (stat.error) (ERROR)
spec_zWarning			[0/902] Zwarning flag (spec_zWarning) (6) (Note 9)   (meta.code) (CODE_MISC)
spec_class			Spectroscopic class: "GALAXY"; "QSO"; "STAR" (spec_class) (Note 6)   (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
spec_subClass			Spectroscopic subclass (spec_subClass) (6) (Note 10)   (src.class) (CLASS_OBJECT)
spec_velDisp		km/s	[0/850] Velocity dispersion (spec_velDisp) (Note 6)   (phys.veloc.dispersion) (VELOC_DISP)
spec_velDispErr		km/s	[-7/4526] Mean error on Vdisp (spec_velDispErr) (Note 6)   (stat.error) (ERROR)
spec_snMedian			[-1927/132] Median signal-to-noise over all good pixels (spec_snMedian) (Note 6)   (em.wl.central;stat.median) (INST_S/N)
pm_match			[0/4] Number of USNO-B objects matched within 1arcsec (pm_match) (Note 11)   (meta.number) (NUMBER)
pm_pmRa		mas/yr	[-6121/5519] Proper motion along Right Ascension (pm_pmRa) (Note 11)   (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pm_pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pm_pmDec) (Note 11)   (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pm_pmRaErr		mas/yr	[0/4709] Mean error on pmRA (pm_pmRaErr) (Note 11)   (stat.error;pos.pm;pos.eq.ra) (ERROR)
pm_pmDecErr		mas/yr	[0/4709] Mean error on pmDE (pm_pmDecErr) (Note 11)   (stat.error;pos.pm;pos.eq.dec) (ERROR)
pm_sigRa		mas	[0/8662] RMS residual of proper motion fit in RA (pm_sigRa) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_sigDec		mas	[0/10625] RMS residual of proper motion fit in Dec (pm_sigDec) (Note 11)   (stat.fit.residual) (FIT_RESIDUAL)
pm_nFit			[0/6] Number of detections used in the pm fit including SDSS (pm_nFit) (Note 11)   (meta.number) (NUMBER)
pm_O			[-214740/70189] Magnitude from USNO-B O plate recalibrated to SDSS g (pm_O) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_E			Magnitude from E plate recalibrated to SDSS r (pm_E) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_J			Magnitude from J plate recalibrated to SDSS g (pm_J) (Note 11)   (phot.mag;em.opt.B) (PHOT_PHG_B)
pm_F			Magnitude from F plate recalibrated to SDSS r (pm_F) (Note 11)   (phot.mag;em.opt.R) (PHOT_PHG_R)
pm_N			Magnitude from N plate recalibrated to SDSS i (pm_N) (Note 11)   (phot.mag;em.opt.I) (PHOT_PHG_I)
photoz_z			(i) [5e-4/1] Photometric redshift estimated by robust fit to nearest neighbors in a reference set (photoz_z) (Note 12)   (src.redshift) (REDSHIFT_PHOT)
photoz_zErr			[0.003/0.3] Estimated error of the photometric redshift (photoz_zErr) (Note 12)   (stat.error) (ERROR)
photoz_nnAvgZ			[0.009/0.9] Average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (photoz_nnAvgZ) (Note 12)   (src.redshift.phot) (REDSHIFT_PHOT)
photoz_chisq			[2e-12/6.3e7] Chi-square value for the minimum chi-square template fit (photoz_chisq) (Note 12)   (stat.value) (FIT_CHI2)
field_quality	3		[1/3] Quality of the observation: 1=bad; 2=barely acceptable; 3=good (field_quality) (Note 13)   (meta.code.qual;obs.param;obs) (CODE_QUALITY)
field_mjd_u	52908.4069	d	Date of observation in u band (field_mjd_u) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_g	52908.4086	d	Date of observation in g band (field_mjd_g) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_r	52908.4052	d	Date of observation in r band (field_mjd_r) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_i	52908.4061	d	Date of observation in i band (field_mjd_i) (Note 13)   (time.epoch) (TIME_DATE)
field_mjd_z	52908.4077	d	Date of observation in z band (field_mjd_z) (Note 13)   (time.epoch) (TIME_DATE)
SDSS16	SDSS J025958.09+004953.6		(i) SDSS-DR16 name based on J2000 position; provided by CDS (meta.id) (ID_ALTERNATIVE)
SDSS-ID	4128-301-5-0424-0338		(i) SDSS object identifier (run-rerun-camcol-field-object) (Note 1)   (meta.id) (ID_ALTERNATIVE)
Sp-ID			(i) Spectroscopic Plate-MJD-Fiber identifier (plate-mjd-fiberID) (meta.id) (ID_ALTERNATIVE)
MJD	52908.4069	d	Mean observation date (average calculated by CDS from the uMJD, gMJD, rMJD, iMJD, zMJD) (time.epoch) (TIME_DATE)