VizieR

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

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II/246
  2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
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2003yCat.2246....0C
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Post annotation 		img(gal)
1.II/246/outThe 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)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  RAJ2000 deg (i) (ra) Right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) (dec) Declination (J2000) (dec) (pos.eq.dec;meta.main)
  errMaj arcsec (err_maj) Semi-major axis of position error ellipse (stat.error)
  errMin arcsec (err_min) Semi-minor axis of position error ellipse (stat.error)
  errPA deg [0,180] (err_ang) Position angle of error ellipse major axis (E of N) (stat.error)
  2MASS (char) (i) (designation) Source designation (Note 1)   (meta.id;meta.main)
  Jmag mag (n)(i) (j_m) J selected default magnitude (Note 2)   (phot.mag;em.IR.J)
  Jcmsig mag (n)(j_cmsig) J default magnitude uncertainty (Note 3)   (stat.error;phot.mag)
  e_Jmag mag (n)(j_msigcom) J total magnitude uncertainty (Note 4)   (stat.error;phot.mag)
  Jsnr  (n)(j_snr) J Signal-to-noise ratio (stat.snr)
  Hmag mag (n)(i) (h_m) H selected default magnitude (Note 2)   (phot.mag;em.IR.H)

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

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

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

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

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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