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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===20084059+2833317
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ColumnValue  Explain   (UCD)
_RAJ200020 08 40.59576 "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+28 33 31.7412 "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)
_RAB195020 06 37.57402 "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+28 24 42.0686 "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)
_Glon066.87452083 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-02.32110277 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)

RAJ2000302.169149 deg (i) (ra) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+28.558817 deg (i) (dec) Declination (J2000) (dec) (pos.eq.dec;meta.main)
errMaj 0.09 arcsec (err_maj) Semi-major axis of position error ellipse (stat.error)
errMin 0.09 arcsec (err_min) Semi-minor axis of position error ellipse (stat.error)
errPA135 deg [0,180] (err_ang) Position angle of error ellipse major axis (E of N) (stat.error)
2MASS20084059+2833317  (i) (designation) Source designation (Note 1)   (meta.id;meta.main)
Jmag16.092 mag (i) (j_m) J selected default magnitude (Note 2)   (phot.mag;em.IR.J)
Jcmsig 0.090 mag (j_cmsig) J default magnitude uncertainty (Note 3)   (stat.error;phot.mag)
e_Jmag 0.091 mag (j_msigcom) J total magnitude uncertainty (Note 4)   (stat.error;phot.mag;em.IR.J)
Jsnr 11.5  (j_snr) J Signal-to-noise ratio (stat.snr)
Hmag15.059 mag (i) (h_m) H selected default magnitude (Note 2)   (phot.mag;em.IR.H)
Hcmsig 0.086 mag (h_cmsig) H default magnitude uncertainty (Note 3)   (stat.error;phot.mag)
e_Hmag 0.086 mag (h_msigcom) H total magnitude uncertainty (Note 4)   (stat.error;phot.mag;em.IR.H)
Hsnr 13.2  (h_snr) H Signal-to-noise ratio (stat.snr)
Kmag14.987 mag (i) (k_m) K selected default magnitude (Note 2)   (phot.mag;em.IR.K)
Kcmsig 0.129 mag (k_cmsig) K default magnitude uncertainty (Note 3)   (stat.error;phot.mag)
e_Kmag 0.130 mag (k_msigcom) K total magnitude uncertainty (Note 4)   (stat.error;phot.mag;em.IR.K)
Ksnr 8.0  (k_snr) K Signal-to-noise ratio (stat.snr)
QflgAAB  (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)
Cflg00c  (cc_flg) Artifact contamination, confusion (Note 8)   (meta.code)
Ndet060506   [0-9] (ndet) Number of aperture measurements (jjhhkk) (Note 9)   (meta.number)
prox 6.6 arcsec Distance between source and nearest neighbour (pos.angDistance)
pxPA 62 deg (pxpa) Position angle of vector from source to nearest neighbour (E of N) (pos.posAng)
pxCntr 83548984  (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 83548979  (pts_key) Unique source identifier in catalogue (meta.id;meta.table)
Hemisn   [ns] (hemis) Hemisphere of observation (obs.param;obs)
Date1997-10-09  (date) Observation date (time.epoch;obs)
Scan 27  (scan) Scan number (within date) (obs.field)
GLON 66.875 deg (glon) Galactic longitude (Note 12)   (pos.galactic.lon)
GLAT -2.321 deg (glat) Galactic latitude (Note 12)   (pos.galactic.lat)
Xscan 3.9 arcsec (x_scan) Distance of source from focal plane centerline (pos.cartesian;instr.det)
JD2450730.6368 d (jdate) Julian date of source measurement (Note 13)   (time.epoch)
Jpsfchi 1.02  (j_psfchi) J band reduced chi2 value of fit (stat.fit.chi2;stat.value)
Hpsfchi 1.02  (h_psfchi) H band reduced chi2 value of fit (stat.fit.chi2;stat.value)
Kpsfchi 1.15  (k_psfchi) K band reduced chi2 value of fit (stat.fit.chi2;stat.value)
Jstdap16.626 mag (jmstdap) J standard aperture magnitude (Note 18)   (phot.mag;em.IR.J)
e_Jstdap 0.371 mag (jmsigstdap) error on Jstdap (stat.error)
Hstdap15.227 mag (hmstdap) H standard aperture magnitude (Note 18)   (phot.mag;em.IR.H)
e_Hstdap 0.144 mag (hmsigstdap) error on Hstdap (stat.error)
Kstdap15.436 mag (kmstdap) K standard aperture magnitude (Note 18)   (phot.mag;em.IR.K)
e_Kstdap 0.296 mag (kmsigstdap) error on Kstdap (stat.error)
edgeNS 5203 arcsec (distedgens) Distance from the source to the nearest North or South scan edge (pos;arith.diff)
edgeEW247 arcsec (distedgeew) Distance from the source to the nearest East or West scan edge (pos;arith.diff)
edgenw   [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)
scanKey 4079  (scan_key) Record Identifier in the Scan Information Table (meta.id)
coaddKey 93812  (coadd_key) Record Identifier in the Atlas Image Data Table (meta.id;meta.dataset)
coadd209  (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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