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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:

  		 Target dimension:

Radius Box size

  
VIII/92
  The FIRST Survey Catalog, Version 2014Dec17 (Helfand+ 2015)
ReadMe+ftp
2015ApJ...801...26H
Similar Catalogs
See also the FIRST description and coverage maps
image/fits
image/gif
Post annotation 		img(gal)
1.VIII/92/first14The FIRST survey catalog, 14Dec17 Version (946432 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 (1) (clicking on the name asks the FIRST Cutout Server to deliver an image of 4'x4' centered on the source) (Note)   (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)
  Maj arcsec Major axis (FWHM) (Note 6)   (phys.angSize)
  Min 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 major axis before deconvolution (Note 7)   (phys.angSize;meta.modelled)
  fMin arcsec Fitted minor axis 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-DR10 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)
  Ep yr Mean epoch of the FIRST flux density (Note 11)   (time.epoch)
  Ep(JD) d Mean epoch in Julian Day (Note 11)   (time.epoch)
  s_Ep(JD) d Epoch rms (Note 11)   (time.epoch)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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usage  Display UCD1+    UCD1  
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