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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===19483629+1220135
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ColumnValue  Explain   (UCD)
_RAJ200019 48 36.29784 "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+12 20 13.5708 "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)
_RAB195019 46 15.47426 "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+12 12 40.8648 "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)
_Glon050.52200273 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-06.73063610 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)

RAJ2000297.151241 deg (i) (ra) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+12.337103 deg (i) (dec) Declination (J2000) (dec) (pos.eq.dec;meta.main)
errMaj 0.07 arcsec (err_maj) Semi-major axis of position error ellipse (stat.error)
errMin 0.07 arcsec (err_min) Semi-minor axis of position error ellipse (stat.error)
errPA 0 deg [0,180] (err_ang) Position angle of error ellipse major axis (E of N) (stat.error)
2MASS19483629+1220135  (i) (designation) Source designation (Note 1)   (meta.id;meta.main)
Jmag 9.034 mag (i) (j_m) J selected default magnitude (Note 2)   (phot.mag;em.IR.J)
Jcmsig 0.033 mag (j_cmsig) J default magnitude uncertainty (Note 3)   (stat.error;phot.mag)
e_Jmag 0.037 mag (j_msigcom) J total magnitude uncertainty (Note 4)   (stat.error;phot.mag;em.IR.J)
Jsnr 7393.2  (j_snr) J Signal-to-noise ratio (stat.snr)
Hmag 8.227 mag (i) (h_m) H selected default magnitude (Note 2)   (phot.mag;em.IR.H)
Hcmsig 0.015 mag (h_cmsig) H default magnitude uncertainty (Note 3)   (stat.error;phot.mag)
e_Hmag 0.021 mag (h_msigcom) H total magnitude uncertainty (Note 4)   (stat.error;phot.mag;em.IR.H)
Hsnr 6428.5  (h_snr) H Signal-to-noise ratio (stat.snr)
Kmag 7.657 mag (i) (k_m) K selected default magnitude (Note 2)   (phot.mag;em.IR.K)
Kcmsig 0.029 mag (k_cmsig) K default magnitude uncertainty (Note 3)   (stat.error;phot.mag)
e_Kmag 0.033 mag (k_msigcom) K total magnitude uncertainty (Note 4)   (stat.error;phot.mag;em.IR.K)
Ksnr 7305.0  (k_snr) K Signal-to-noise ratio (stat.snr)
QflgAAA  (ph_qual) JHK Photometric quality flag (Note 5)   (meta.code.qual;phot)
Rflg111  (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)
Ndet666656   [0-9] (ndet) Number of aperture measurements (jjhhkk) (Note 9)   (meta.number)
prox 16.3 arcsec Distance between source and nearest neighbour (pos.angDistance)
pxPA272 deg (pxpa) Position angle of vector from source to nearest neighbour (E of N) (pos.posAng)
pxCntr 908143233  (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)
Cntr 908143235  (pts_key) Unique source identifier in catalogue (meta.id;meta.table)
Hemisn   [ns] (hemis) Hemisphere of observation (obs.param;obs)
Date1999-10-24  (date) Observation date (time.epoch;obs)
Scan 13  (scan) Scan number (within date) (obs.field)
GLON 50.522 deg (glon) Galactic longitude (Note 12)   (pos.galactic.lon)
GLAT -6.731 deg (glat) Galactic latitude (Note 12)   (pos.galactic.lat)
Xscan 174.2 arcsec (x_scan) Distance of source from focal plane centerline (pos.cartesian;instr.det)
JD2451475.5999 d (jdate) Julian date of source measurement (Note 13)   (time.epoch)
Jpsfchi 1.07  (j_psfchi) J band reduced chi2 value of fit (stat.fit.chi2;stat.value)
Hpsfchi 1.03  (h_psfchi) H band reduced chi2 value of fit (stat.fit.chi2;stat.value)
Kpsfchi 2.36  (k_psfchi) K band reduced chi2 value of fit (stat.fit.chi2;stat.value)
Jstdap 9.049 mag (jmstdap) J standard aperture magnitude (Note 18)   (phot.mag;em.IR.J)
e_Jstdap 0.019 mag (jmsigstdap) error on Jstdap (stat.error)
Hstdap 8.253 mag (hmstdap) H standard aperture magnitude (Note 18)   (phot.mag;em.IR.H)
e_Hstdap 0.014 mag (hmsigstdap) error on Hstdap (stat.error)
Kstdap  mag (kmstdap) K standard aperture magnitude (Note 18)   (phot.mag;em.IR.K)
e_Kstdap  mag (kmsigstdap) error on Kstdap (stat.error)
edgeNS 1750 arcsec (distedgens) Distance from the source to the nearest North or South scan edge (pos;arith.diff)
edgeEW 80 arcsec (distedgeew) Distance from the source to the nearest East or West scan edge (pos;arith.diff)
edgesw   [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)
opt0   [0UT] (a) Associated optical source (Note 16)   (meta.id;meta.dataset)
Dopt  arcsec (dist_opt) Distance to associated optical source (pos.angDistance)
PAopt  deg [0,360] (phi_opt) position angle from optical source to the 2MASS source position (pos.posAng)
Bmag  mag (bmopt) Blue magnitude of associated optical source (phot.mag;em.opt.B)
Rmag  mag (vrmopt) Visual or red mag of associated optical source (phot.mag;em.opt.R)
Nopt0  (nopt_mchs) Number of optical sources within 5arcsec (Note 17)   (meta.number)
extKey   (ext_key) Record Identifier in XSC (meta.id.cross)
scanKey49427  (scan_key) Record Identifier in the Scan Information Table (meta.id)
coaddKey1136820  (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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