VizieR

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VizieR

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V/147/sdss12 The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)
Data Release 12 (469,053,874 primary sources plus 324,960,094 secondary sources); 3,538,079 spectroscopic targets (original column names in green) (794013968 rows)
  -c=231.402815 +42.871255, eq=ICRS, rs=2
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ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (231.402815+42.871255)[ICRS], at Epoch of catalog (ObsDate) (pos.angDistance)
_RAJ200015 25 36.67560 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+42 52 16.5180 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195015 23 51.37366 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+43 02 44.5587 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon069.93251093 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)
_Glat+55.12340198 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)

ra231.402815 deg (i) Right Ascension of the object (ICRS) at Epoch="ObsDate" (ra) (pos.eq.ra;meta.main)
dec+42.871255 deg (i) Declination of the object (ICRS) at Epoch="ObsDate" (dec) (pos.eq.dec;meta.main)
mode1   [1/2] 1: primary (469,053,874 sources), 2: secondary (324,960,094 sources) (meta.code.class)
clean+   [+] '+' indicates clean photometry (310,190,812 sources with mode 1+) (clean) (meta.code.qual;instr.setup)
class3  Type of object (3=galaxy, 6=star) (Note 1)   (src.class)
SDSS12J152536.67+425216.5  (i) SDSS-DR12 name, based on J2000 position (meta.id)
m_SDSS12    [*] The asterisk indicates that 2 different SDSS objects share the same SDSS12 name (meta.code.multip)

DR12Im  Image from SDSS-server (DR12) (meta.ref.url)

SDSS-ID3918-301-5-0220-0630  (i) [0-9 -] SDSS object identifier (Note 2)   (meta.id)
objID1237662302977393270  (i) SDSS unique object identifier (2) (links to SDSS-DR12 details) (Note)   (meta.id;meta.main)
Sp-ID   (i) Spectroscopic Plate-MJD-Fiber identifier (7) (Note)   (meta.id)
SpObjID 0  Pointer to the spectrum of object, or 0 (Note 7)   (meta.id)
parentID 0  Pointer to parent (if object deblended) (meta.id.parent)
flags 68987912960  Photo Object Attribute flags (Note 3)   (meta.code.error)
Status 257  Hexadecimal status (Note 4)   (meta.code)
raErr 0.090 arcsec [0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra)
decErr 0.098 arcsec [0/20301] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec)
ObsDate2003.3244 yr (i) Mean Observation date (Note 6)   (time.epoch;obs;stat.mean)
Q3   [1/3] Quality of the observation: 1=bad 2=acceptable 3=good (meta.code.qual;obs.param;obs)
u22.900 mag (i) [4/38] Model magnitude in u filter, AB scale (u) (Note 5)   (phot.mag;em.opt.U)
err_u 0.373 mag Mean error on umag (err_u) (stat.error;phot.mag)
g22.499 mag (i) [5/40] Model magnitude in g filter, AB scale (g) (Note 5)   (phot.mag;em.opt.B)
err_g 0.123 mag Mean error on gmag (err_g) (stat.error;phot.mag)
r22.028 mag (i) [4/39] Model magnitude in r filter, AB scale (r) (Note 5)   (phot.mag;em.opt.R)
err_r 0.115 mag Mean error on rmag (err_r) (stat.error;phot.mag)
i21.581 mag (i) [3/40] Model magnitude in i filter, AB scale (i) (Note 5)   (phot.mag;em.opt.I)
err_i 0.123 mag Mean error on imag (err_i) (stat.error;phot.mag)
z21.655 mag (i) [3/38] Model magnitude in z filter, AB scale (z) (Note 5)   (phot.mag;em.opt.I)
err_z 0.379 mag Mean error on zmag (err_z) (stat.error;phot.mag)
zsp   (i) [-0.02/7.1] Spectroscopic redshift (when SpObjID>0) (Note 7)   (src.redshift)
e_zsp    Mean error on zsp (negative for bad fit) (Note 7)   (stat.error)
f_zsp    [0/196] "zwarning" flag (Note 9)   (meta.code)
velDisp  km/s [0/850] Velocity dispersion (velDisp) (phys.veloc.dispersion)
velDispErr  km/s Mean error on Vdisp (velDispErr) (stat.error)
instrument    Spectral instrument used (SDSS or BOSS) (instrument) (meta.id;instr)
sourceType    Source type (sourceType) (10) (list of types) (Note)   (src.class)
spCl    Spectroscopic class: GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect)
subClass    Spectroscopic subclass (subClass) (Note 11)   (src.spType)
snMedian    [0/132] Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median)
flags_u 134251777  Detection flags, u band (flags_u) (Note 3)   (meta.code)
probPSF_u0  0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy)
type_u3   [0/6] Phototype in u band, 6=Star (type_u) (Note 1)   (src.class.starGalaxy)
uDate2003.3244 yr Date of observation in u band (Note 6)   (time.epoch)
u'mag22.900 mag [4/38] Model magnitude in u' filter (= umag) (Note 5)   (phot.mag;em.opt.U)
e_u'mag 0.373 mag Mean error on u'mag (= e_umag) (stat.error;phot.mag)
psfMag_u23.038 mag [5/34] PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U)
psfMagErr_u 0.341 mag Mean error on upmag (psfMagErr_u) (stat.error;phot.mag)
petroMag_u22.155 mag [3/43] Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U)
petroMagErr_u 0.415 mag Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag)
petroRad_u 11.309 arcsec [0/260] Petrosian radius in u band (petroRad_u) (phys.angSize;src)
petroRadErr_u  arcsec Mean error in uPrad (petroRadErr_u) (stat.error)
offsetRa_u 0.00 arcsec Offset of u position along RA (offsetRa_u) (pos.angDistance)
offsetDec_u 0.02 arcsec Offset of u position along Dec (offsetDec_u) (pos.angDistance)
deVRad_u 12.329 arcsec de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src)
udVell 0.050 arcsec de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity)
deVPhi_u120.4 deg Position angle of dVrad in u band (deVPhi_u) (pos.posAng)
flags_g 275146342400  Detection flags, g band (flags_g) (Note 3)   (meta.code)
probPSF_g0  0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy)
type_g3  Phototype in g band, 6=Star (type_g) (Note 1)   (src.class.starGalaxy)
gDate2003.3244 yr Date of observation in g band (Note 6)   (time.epoch)
g'mag22.499 mag [5/39] Model magnitude in g' filter (= gmag) (Note 5)   (phot.mag;em.opt.B)
e_g'mag 0.123 mag Mean error on g'mag (= e_gmag) (stat.error;phot.mag)
psfMag_g22.758 mag [5/37] PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B)
psfMagErr_g 0.122 mag Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag)
petroMag_g22.652 mag [4/46] Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B)
petroMagErr_g 0.304 mag Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag)
petroRad_g 1.586 arcsec Petrosian radius in g band (petroRad_g) (phys.angSize;src)
petroRadErr_g 0.195 arcsec Mean error in gPrad (petroRadErr_g) (stat.error)
offsetRa_g -0.23 arcsec Offset of g position along RA (offsetRa_g) (pos.angDistance)
offsetDec_g 0.08 arcsec Offset of g position along Dec (offsetDec_g) (pos.angDistance)
deVRad_g 0.767 arcsec de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src)
gdVell 0.220 arcsec de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity)
deVPhi_g144.9 deg Position angle of dVrad in g band (deVPhi_g) (pos.posAng)
flags_r 4503874773712896  Detection flags, r band (flags_r) (Note 3)   (meta.code)
probPSF_r0  0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy)
type_r3  Phototype in r band, 6=Star (type_r) (Note 1)   (src.class.starGalaxy)
rDate2003.3244 yr Date of observation in r band (Note 6)   (time.epoch)
r'mag22.028 mag [4/39] Model magnitude in r' filter (= rmag) (Note 5)   (phot.mag;em.opt.R)
e_r'mag 0.115 mag Mean error on r'mag (= e_rmag) (stat.error;phot.mag)
psfMag_r22.298 mag [4/33] PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R)
psfMagErr_r 0.114 mag Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag)
petroMag_r22.188 mag [4/43] Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R)
petroMagErr_r 0.323 mag Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag)
petroRad_r 1.765 arcsec Petrosian radius in r band (petroRad_r) (phys.angSize;src)
petroRadErr_r 0.365 arcsec Mean error in rPrad (petroRadErr_r) (stat.error)
offsetRa_r 0.00 arcsec Offset of r position along RA (offsetRa_r) (pos.angDistance)
offsetDec_r 0.00 arcsec Offset of r position along Dec (offsetDec_r) (pos.angDistance)
deVRad_r 0.456 arcsec de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src)
rdVell 0.229 arcsec de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity)
deVPhi_r200.1 deg Position angle of dVrad in r band (deVPhi_r) (pos.posAng)
flags_i 275280560128  Detection flags, i band (flags_i) (Note 3)   (meta.code)
probPSF_i0  0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy)
type_i3  Phototype in i band, 6=Star (type_i) (Note 1)   (src.class.starGalaxy)
iDate2003.3244 yr Date of observation in i band (Note 6)   (time.epoch)
i'mag21.581 mag [3/40] Model magnitude in i' filter (= imag) (Note 5)   (phot.mag;em.opt.I)
e_i'mag 0.123 mag Mean error on i'mag (= e_imag) (stat.error;phot.mag)
psfMag_i21.788 mag [3/34] PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I)
psfMagErr_i 0.115 mag Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag)
petroMag_i22.737 mag [3/45] Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I)
petroMagErr_i 0.865 mag Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag)
petroRad_i 1.355 arcsec Petrosian radius in i band (petroRad_i) (phys.angSize;src)
petroRadErr_i 0.105 arcsec Mean error in iPrad (petroRadErr_i) (stat.error)
offsetRa_i 0.05 arcsec Offset of i position along RA (offsetRa_i) (pos.angDistance)
offsetDec_i 0.17 arcsec Offset of i position along Dec (offsetDec_i) (pos.angDistance)
deVRad_i 0.294 arcsec de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src)
idVell 0.050 arcsec de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity)
deVPhi_i 58.8 deg Position angle of dVrad in i band (deVPhi_i) (pos.posAng)
flags_z 9007199388959233  Detection flags, z band (flags_z) (Note 3)   (meta.code)
probPSF_z0  0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy)
type_z3  Phototype in z band, 6=Star (type_z) (Note 1)   (src.class.starGalaxy)
zDate2003.3244 yr Date of observation in z band (Note 6)   (time.epoch)
z'mag21.655 mag [3/38] Model magnitude in z filter (= zmag) (Note 5)   (phot.mag;em.opt.I)
e_z'mag 0.379 mag Mean error on z'mag (= e_zmag) (stat.error;phot.mag)
psfMag_z21.842 mag [3/32] PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I)
psfMagErr_z 0.323 mag Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag)
petroMag_z20.784 mag [3/42] Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I)
petroMagErr_z 0.488 mag Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag)
petroRad_z 0.671 arcsec Petrosian radius in z band (petroRad_z) (phys.angSize;src)
petroRadErr_z 0.468 arcsec Mean error in zPrad (petroRadErr_z) (stat.error)
offsetRa_z -0.02 arcsec Offset of z position along RA (offsetRa_z) (pos.angDistance)
offsetDec_z 0.02 arcsec Offset of z position along Dec (offsetDec_z) (pos.angDistance)
deVRad_z 22.688 arcsec de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src)
zdVell 0.104 arcsec de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity)
deVPhi_z159.2 deg Position angle of dVrad in z band (deVPhi_z) (pos.posAng)
pmRa  mas/yr [-6121/4129] Proper motion along Right Ascension (pmRa) (Note 8)   (pos.pm;pos.eq.ra)
pmRaErr  mas/yr Mean error on pmRA (pmRaErr) (Note 8)   (stat.error;pos.pm;pos.eq.ra)
pmDec  mas/yr [-4846/4437] Proper motion along Declination (pmDec) (Note 8)   (pos.pm;pos.eq.dec)
pmDecErr  mas/yr Mean error on pmDE (pmDecErr) (Note 8)   (stat.error;pos.pm;pos.eq.dec)
sigRA  mas [0/8662] RMS residual of proper motion fit in RA (Note 8)   (stat.fit.residual)
sigDE  mas [0/10625] RMS residual of proper motion fit in Dec (Note 8)   (stat.fit.residual)
match    [1/4] Number of USNO-B objects matched within 1arcsec (match) (Note 8)   (meta.number)
nFit    [4/6] Number of detections used in the pm fit, including SDSS (nFit) (Note 8)   (meta.number)
g(O)    Magnitude from O plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(E)    Magnitude from E plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
g(J)    Magnitude from J plate recalibrated to g (Note 8)   (phot.mag;em.opt.B)
r(F)    Magnitude from F plate recalibrated to r (Note 8)   (phot.mag;em.opt.R)
i(N)    Magnitude from N plate recalibrated to i (Note 8)   (phot.mag;em.opt.I)
zph 0.5192  (i) [-9999/] Photometric redshift; estimated by robust fit to nearest neighbors in a reference set (Note 12)   (src.redshift)
zErr 0.1809   [-9999/] Estimated error of the photometric redshift (zErr) (Note 12)   (stat.error)
nnAvgZ 0.4917   [0.009/0.9] average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (nnAvgZ) (src.redshift.phot)
chisq_zph 17.515   Chi-square value for the minimum chi-square template fit (chisq_zph) (stat.value)
absMagU -20.442 mag [-644/4] rest frame u' absolute magnitude (absMagU) (phys.magAbs)
absMagG -19.797 mag [-472/3] rest frame g' absolute magnitude (absMagG) (phys.magAbs)
absMagR -19.923 mag [-351/3] rest frame r' absolute magnitude (absMagR) (phys.magAbs)
absMagI -20.113 mag [-271/7] rest frame i' absolute magnitude (absMagI) (phys.magAbs)
absMagZ -22.593 mag [-199/3] rest frame z' absolute magnitude (absMagZ) (phys.magAbs)
  
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