VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

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II/246/out 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
The Point Source catalogue of 470,992,970 sources. Please acknowledge the usage of the 2MASS All-Sky Survey; see also the 2MASS Pages.    Note that the magnitudes in red correspond to low quality results (upper limits or very poor photometry) (470992970 rows)
  2MASS===02000445+0020517
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ColumnValue  Explain   (UCD)
_RAJ200002 00 04.45848 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (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.eq.ra)
_DEJ2000+00 20 51.7020 "d:m:s" Declination (FK5, Equinox=J2000.0) (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.eq.dec)
_RAB195001 57 30.56734 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (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.eq.ra)
_DEB1950+00 06 21.2550 "d:m:s" Declination (FK4, Equinox=B1950.0) (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.eq.dec)
_Glon156.70885796 deg Galactic longitude (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-57.95064198 deg Galactic latitude (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)

RAJ2000030.018577 deg (i) (ra) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+00.347695 deg (i) (dec) Declination (J2000) (dec) (pos.eq.dec;meta.main)
errMaj 0.23 arcsec (err_maj) Semi-major axis of position error ellipse (stat.error)
errMin 0.22 arcsec (err_min) Semi-minor axis of position error ellipse (stat.error)
errPA 37 deg [0,180] (err_ang) Position angle of error ellipse major axis (E of N) (stat.error)
2MASS02000445+0020517  (i) (designation) Source designation (Note 1)   (meta.id;meta.main)
Jmag16.523 mag (i) (j_m) J selected default magnitude (Note 2)   (phot.mag;em.IR.J)
Jcmsig 0.124 mag (j_cmsig) J default magnitude uncertainty (Note 3)   (stat.error;phot.mag)
e_Jmag 0.125 mag (j_msigcom) J total magnitude uncertainty (Note 4)   (stat.error;phot.mag;em.IR.J)
Jsnr 9.5  (j_snr) J Signal-to-noise ratio (stat.snr)
Hmag16.009 mag (i) (h_m) H selected default magnitude (Note 2)   (phot.mag;em.IR.H)
Hcmsig 0.172 mag (h_cmsig) H default magnitude uncertainty (Note 3)   (stat.error;phot.mag)
e_Hmag 0.172 mag (h_msigcom) H total magnitude uncertainty (Note 4)   (stat.error;phot.mag;em.IR.H)
Hsnr 6.3  (h_snr) H Signal-to-noise ratio (stat.snr)
Kmag15.527 mag (i) (k_m) K selected default magnitude (Note 2)   (phot.mag;em.IR.K)
Kcmsig 0.175 mag (k_cmsig) K default magnitude uncertainty (Note 3)   (stat.error;phot.mag)
e_Kmag 0.175 mag (k_msigcom) K total magnitude uncertainty (Note 4)   (stat.error;phot.mag;em.IR.K)
Ksnr 6.4  (k_snr) K Signal-to-noise ratio (stat.snr)
QflgBCC  (ph_qual) JHK Photometric quality flag (Note 5)   (meta.code.qual;phot)
Rflg222  (rd_flg) Source of JHK default mag (Note 6)   (meta.ref)
Bflg111  (bl_flg) JHK components fit to source (Note 7)   (meta.code)
Cflg000  (cc_flg) Artifact contamination, confusion (Note 8)   (meta.code)
Ndet060606   [0-9] (ndet) Number of aperture measurements (jjhhkk) (Note 9)   (meta.number)
prox 5.9 arcsec Distance between source and nearest neighbour (pos.angDistance)
pxPA280 deg (pxpa) Position angle of vector from source to nearest neighbour (E of N) (pos.posAng)
pxCntr1098207853  (pxcntr) Sequence number of nearest neighbour (meta.number)
Xflg0   [0,2] (gal_contam) Extended source contamination (Note 10)   (meta.code)
Aflg0   [0,1] (mp_flg) Association with asteroid or comet (Note 11)   (meta.code)
Cntr1098207854  (pts_key) Unique source identifier in catalogue (meta.id;meta.table)
Hemiss   [ns] (hemis) Hemisphere of observation (obs.param;obs)
Date2000-08-27  (date) Observation date (time.epoch;obs)
Scan142  (scan) Scan number (within date) (obs.field)
GLON156.709 deg (glon) Galactic longitude (Note 12)   (pos.galactic.lon)
GLAT-57.951 deg (glat) Galactic latitude (Note 12)   (pos.galactic.lat)
Xscan -95.6 arcsec (x_scan) Distance of source from focal plane centerline (pos.cartesian;instr.det)
JD2451783.9067 d (jdate) Julian date of source measurement (Note 13)   (time.epoch)
Jpsfchi 0.90  (j_psfchi) J band reduced chi2 value of fit (stat.fit.chi2;stat.value)
Hpsfchi 0.63  (h_psfchi) H band reduced chi2 value of fit (stat.fit.chi2;stat.value)
Kpsfchi 0.79  (k_psfchi) K band reduced chi2 value of fit (stat.fit.chi2;stat.value)
Jstdap16.410 mag (jmstdap) J standard aperture magnitude (Note 18)   (phot.mag;em.IR.J)
e_Jstdap 0.102 mag (jmsigstdap) error on Jstdap (stat.error)
Hstdap16.761 mag (hmstdap) H standard aperture magnitude (Note 18)   (phot.mag;em.IR.H)
e_Hstdap 0.863 mag (hmsigstdap) error on Hstdap (stat.error)
Kstdap15.664 mag (kmstdap) K standard aperture magnitude (Note 18)   (phot.mag;em.IR.K)
e_Kstdap 0.292 mag (kmsigstdap) error on Kstdap (stat.error)
edgeNS 1270 arcsec (distedgens) Distance from the source to the nearest North or South scan edge (pos;arith.diff)
edgeEW156 arcsec (distedgeew) Distance from the source to the nearest East or West scan edge (pos;arith.diff)
edgese   [nsew] (distedgeflg) flag indicating to which edges the edgeNS and edgeEW values refer (pos.cartesian;instr.det)
dup0  (dup_src) Flag indicating duplicate source (Note 14)   (meta.code)
use1  (use_src) Use source flag (Note 15)   (meta.code)
optU   [0UT] (a) Associated optical source (Note 16)   (meta.id;meta.dataset)
Dopt 0.7 arcsec (dist_opt) Distance to associated optical source (pos.angDistance)
PAopt165 deg [0,360] (phi_opt) position angle from optical source to the 2MASS source position (pos.posAng)
Bmag19.10 mag (bmopt) Blue magnitude of associated optical source (phot.mag;em.opt.B)
Rmag19.00 mag (vrmopt) Visual or red mag of associated optical source (phot.mag;em.opt.R)
Nopt1  (nopt_mchs) Number of optical sources within 5arcsec (Note 17)   (meta.number)
extKey   (ext_key) Record Identifier in XSC (meta.id.cross)
scanKey58816  (scan_key) Record Identifier in the Scan Information Table (meta.id)
coaddKey1352767  (coadd_key) Record Identifier in the Atlas Image Data Table (meta.id;meta.dataset)
coadd256  (coadd) Sequence number of the Atlas Image (meta.number)

OptOpt  Show the nearby Optical Sources from USNO and GSC Catalogues (meta.ref.url)
  
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