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VIII/90
  The FIRST Survey Catalog, Version 12Feb16 (Becker+ 2012)
ReadMe+ftp
1997ApJ...475..479W
Similar Catalogs
This catalogue is obsoleted by VIII/92
Post annotation 		img(gal)
1.VIII/90/first12The FIRST survey catalog, 12Feb16 Version (946464 rows)
The column FIRST provides a link to the FIRST cutout image server (see also the original FIRST search engine)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  FIRST (char) (i) FIRST Source designation (Note 1)   (meta.id;meta.main)
image/gif
  FITS  Get a fully WCS-qualified FITS image of the target (meta.ref.url)
image/fits
  RAJ2000 "h:m:s" (i) Right Ascension J2000 (Note 2)   (pos.eq.ra;meta.main)
  DEJ2000 "d:m:s" (i) Declination J2000 (Note 2)   (pos.eq.dec;meta.main)
  p(S)   [0,1] Probability of being a side lobe (Note 3)   (stat.fit.goodness)
  Fpeak mJy Peak flux density at 1.4GHz (Note 4)   (phot.flux.density;em.radio.750-1500MHz)
  Fint mJy Integrated flux density at 1.4GHz (Note 4)   (phot.flux.density;em.radio.750-1500MHz)
  Rms mJy Local noise estimate (Note 5)   (stat.stdev;instr.det.noise)
  MajAxis arcsec Major axis (FWHM) (Note 6)   (phys.angSize)
  MinAxis arcsec Minor axis (FWHM) (Note 6)   (phys.angSize)

ALL cols		    
 (i)indexed column
  PA deg [0/180] Position angle (Note 6)   (pos.posAng)
  fMaj arcsec Fitted MajAxis before deconvolution (Note 7)   (phys.angSize;meta.modelled)
  fMin arcsec Fitted MinAxis before deconvolution (Note 7)   (phys.angSize;meta.modelled)
  fPA deg [0/180] Fitted PA before deconvolution (Note 7)   (pos.posAng;meta.modelled)
  Field (char) Name of the coadded image containing the source (Note 8)   (obs.image)
  N1  (n) [0/10] Number of SDSS-DR8 counterparts (Note 9)   (obs.image)
  r1 arcsec (n) [0/8] Closest SDSS match (Note 9)   (pos;arith.diff)
  m1 mag (n) SDSS i magnitude of closest SDSS match (Note 9)   (phot.mag;em.opt.I)
  c1 (char) [sg-] SDSS class: s=star, g=galaxy (src.class.starGalaxy)
  N2  Number of 2MASS counterparts (Note 10)   (obs.image)
  r2 arcsec (n) [0/8] Closest 2MASS match (Note 10)   (pos;arith.diff)
  m2 mag (n) 2MASS Ks mag. of closest 2MASS match (Note 10)   (phot.mag;em.IR.K)

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