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  II/246
 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
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1.II/246/out The Point Source catalogue of 470,992,970 sources. Please acknowledge the usage of the 2MASS All-Sky Survey; see also the 2MASS Pages. (470992970 rows)
  Query Setup (usage)
Maximum Entries per table:
Output layout:
Output Order:
+ - 		 
  Query by Position on the Sky  (Adapt Form to use a List of targets)
Target Name (resolved by Simbad) or Position:

Position in Sexagesimal, or Decimal ° 		Target dimension:

Radius or Box size 		 
  Output preferences for Position:
  rx,yPositionGalactic  J2000    B1950  Ecl.J2000  none
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r and x,y are the distance to the Target;
Position is in the same coordinate system as Target.
  Query by Constraints applied on Columns
ShowSortColumn  Constraint Explain   (UCD)
  RAJ2000 deg (ra) Right ascension (J2000)   (pos.eq.ra;meta.main)   (POS_EQ_RA_MAIN)
  DEJ2000 deg (dec) Declination (J2000) (dec)   (pos.eq.dec;meta.main)   (POS_EQ_DEC_MAIN)
  errMaj arcsec (err_maj) Major axis of position error ellipse   (stat.error)   (ERROR)
  errMin arcsec (err_min) Minor axis of position error ellipse   (stat.error)   (ERROR)
  errPA deg [0,180] (err_ang) Position angle of error ellipse major axis (E of N)   (stat.error)   (ERROR)
  2MASS (char) (designation) Source designation (Note 1)   (meta.id;meta.main)   (ID_MAIN)
  Jmag mag (n)(j_m) J selected default magnitude (Note 2)   (phot.mag;em.IR.J)   (PHOT_JHN_J)
  Jcmsig mag (n)(j_cmsig) J default magnitude uncertainty (Note 3)   (stat.error;phot.mag)   (ERROR)
  e_Jmag mag (n)(j_msigcom) J total magnitude uncertainty (Note 4)   (stat.error;phot.mag;em.IR.J)   (ERROR)
  Jsnr  (n)(j_snr) J Signal-to-noise ratio   (stat.snr)   (INST_S/N)
  Hmag mag (n)(h_m) H selected default magnitude (Note 2)   (phot.mag;em.IR.H)   (PHOT_JHN_H)

ALL cols		    
(n) indicates a possible blank or NULL column  
  Hcmsig mag (n)(h_cmsig) H default magnitude uncertainty (Note 3)   (stat.error;phot.mag)   (ERROR)
  e_Hmag mag (n)(h_msigcom) H total magnitude uncertainty (Note 4)   (stat.error;phot.mag;em.IR.H)   (ERROR)
  Hsnr  (n)(h_snr) H Signal-to-noise ratio   (stat.snr)   (INST_S/N)
  Kmag mag (n)(k_m) K selected default magnitude (Note 2)   (phot.mag;em.IR.K)   (PHOT_JHN_K)
  Kcmsig mag (n)(k_cmsig) K default magnitude uncertainty (Note 3)   (stat.error;phot.mag)   (ERROR)
  e_Kmag mag (n)(k_msigcom) K total magnitude uncertainty (Note 4)   (stat.error;phot.mag;em.IR.K)   (ERROR)
  Ksnr  (n)(k_snr) K Signal-to-noise ratio   (stat.snr)   (INST_S/N)
  Qflg (char) (ph_qual) JHK Photometric quality flag (Note 5)   (meta.code.qual;phot)   (CODE_QUALITY)
  Rflg (char) (rd_flg) Source of JHK default mag (Note 6)   (meta.ref)   (REFER_CODE)
  Bflg (char) (bl_flg) JHK components fit to source (Note 7)   (meta.code)   (CODE_MISC)
  Cflg (char) (cc_flg) Artifact contamination, confusion (Note 8)   (meta.code)   (CODE_MISC)
  Ndet (char) [0-9] (ndet) Number of aperture measurements (jjhhkk) (Note 9)   (meta.number)   (NUMBER)
  prox arcsec Distance between source and nearest neighbour   (pos.angDistance)   (POS_ANG_DIST_GENERAL)

ALL cols		    
(n) indicates a possible blank or NULL column  
  pxPA deg (n) (pxpa) Position angle of vector from source to nearest neighbour (E of N)   (pos.posAng)   (POS_POS-ANG)
  pxCntr  (pxcntr) Sequence number of nearest neighbour   (meta.number)   (ID_NUMBER)
  Xflg   [0,2] (gal_contam) Extended source contamination (Note 10)   (meta.code)   (CODE_MISC)
  Aflg   [0,1] (mp_flg) Association with asteroid or comet (Note 11)   (meta.code)   (CODE_MISC)
  Cntr  (pts_key) Unique source identifier in catalogue   (meta.id;meta.table)   (ID_NUMBER)
  Hemis (char) [ns] (hemis) Hemisphere of observation   (obs.param;obs)   (OBS_CODE)
  Date (char) (date) Observation date   (time.epoch;obs)   (TIME_DATE)
  Scan  (scan) Scan number (within date)   (obs.field)   (ID_FIELD)
  GLON deg (glon) Galactic longitude (Note 12)   (pos.galactic.lon)   (POS_GAL_LON)
  GLAT deg (glat) Galactic latitude (Note 12)   (pos.galactic.lat)   (POS_GAL_LAT)
  Xscan arcsec (x_scan) Distance of source from focal plane centerline   (pos.cartesian;instr.det)   (INST_POS)
  JD d (jdate) Julian date of source measurement (Note 13)   (time.epoch)   (TIME_DATE)
  Jpsfchi  (n)(j_psfchi) J band reduced chi2 value of fit   (stat.fit.chi2;stat.value)   (FIT_ERROR)

ALL cols		    
(n) indicates a possible blank or NULL column  
  Hpsfchi  (n)(h_psfchi) H band reduced chi2 value of fit   (stat.fit.chi2;stat.value)   (FIT_ERROR)
  Kpsfchi  (n)(k_psfchi) K band reduced chi2 value of fit   (stat.fit.chi2;stat.value)   (FIT_ERROR)
  Jstdap mag (n)(jmstdap) J standard aperture magnitude (Note 18)   (phot.mag;em.IR.J)   (PHOT_JHN_J)
  e_Jstdap mag (n)(jmsigstdap) error on Jstdap   (stat.error)   (ERROR)
  Hstdap mag (n)(hmstdap) H standard aperture magnitude (Note 18)   (phot.mag;em.IR.H)   (PHOT_JHN_H)
  e_Hstdap mag (n)(hmsigstdap) error on Hstdap   (stat.error)   (ERROR)
  Kstdap mag (n)(kmstdap) K standard aperture magnitude (Note 18)   (phot.mag;em.IR.K)   (PHOT_JHN_K)
  e_Kstdap mag (n)(kmsigstdap) error on Kstdap   (stat.error)   (ERROR)
  edgeNS arcsec (distedgens) Distance from the source to the nearest North or South scan edge   (pos;arith.diff)   (INST_PLATE_DIST)
  edgeEW arcsec (distedgeew) Distance from the source to the nearest East or West scan edge   (pos;arith.diff)   (INST_PLATE_DIST)
  edge (char) [nsew] (distedgeflg) flag indicating to which edges the edgeNS and edgeEW values refer   (pos.cartesian;instr.det)   (INST_POS)
  dup  (dup_src) Flag indicating duplicate source (Note 14)   (meta.code)   (CODE_MISC)
  use  (use_src) Use source flag (Note 15)   (meta.code)   (CODE_MISC)

ALL cols		    
(n) indicates a possible blank or NULL column  
  opt (char) [0UT] (a) Associated optical source (Note 16)   (meta.id;meta.dataset)   (ID_CATALOG)
  Dopt arcsec (n)(dist_opt) Distance to associated optical source   (pos.angDistance)   (POS_ANG_DIST_GENERAL)
  PAopt deg (n) [0,360] (phi_opt) position angle from optical source to the 2MASS source position   (pos.posAng)   (POS_POS-ANG)
  Bmag mag (n)(bmopt) Blue magnitude of associated optical source   (phot.mag;em.opt.B)   (PHOT_PHG_B)
  Rmag mag (n)(vrmopt) Visual or red mag of associated optical source   (phot.mag;em.opt.R)   (PHOT_PHG_R)
  Nopt  (nopt_mchs) Number of optical sources within 5arcsec (Note 17)   (meta.number)   (NUMBER)
  extKey  (n)(ext_key) Record Identifier in XSC   (meta.id.cross)   (ID_CROSSID)
  scanKey  (scan_key) Record Identifier in the Scan Information Table   (meta.id)   (ID_NUMBER)
  coaddKey  (coadd_key) Record Identifier in the Atlas Image Data Table   (meta.id;meta.dataset)   (ID_TABLE)
  coadd  (coadd) Sequence number of the Atlas Image   (meta.number)   (ID_NUMBER)
  Opt  Show the nearby Optical Sources from USNO and GSC Catalogues   (meta.ref.url)   (DATA_LINK)

ALL cols		  
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