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J/A+A/614/A140
  Large Quasar Astrometric Catalogue 4, LQAC-4 (Gattano+, 2018)
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1.J/A+A/614/A140/lqac44th release of the Large Quasar Astrometric Catalogue (443725 rows)

 
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)
  LQAC (char) (i) LQAC name given for each object based on equatorial coordinates (meta.id;meta.main)
  Flag   [3/4] Flag to recognize already recorded or new sources (Note 1)   (meta.code.error)
  OName (char) Name of the quasar in the original catalog (Note 2)   (meta.id)
  Nature (char) Nature of the object (Note 3)   (meta.code.class)
  RAOdeg deg Right ascension (J2000) in original catalog (Note 4)   (pos.eq.ra)
  DEOdeg deg Declination (J2000) in original catalog (Note 4)   (pos.eq.dec)
  Source (char) Source of the following optimized equatorial coordinates (Note 5)   (meta.code)
  RAJ2000 deg (i) Optimized Right ascension (J2000) (Note 6)   (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Optimized Declination (J2000) (Note 6)   (pos.eq.dec;meta.main)
  e_RAJ2000 mas (n) Uncertainity in d(alpha)xcos(delta) in Gaia DR1 (Note 7)   (stat.error;pos.eq.ra)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  e_DEJ2000 mas (n) Uncertainty in d(delta) in Gaia DR1 (Note 7)   (stat.error;pos.eq.dec)
  Ref (char) Flags indicating the presence of the quasar in the 13 catalogs belonging to the compilation (Note 8)   (meta.code)
  GAIA (char) Flag to recognize recorded sources in GAIA-DR1 (Note 9)   (meta.code)
  z  (i) Redshift (src.redshift)
  umag mag (n) Photometric magnitude in Optical u band between 300 and 400 nm (Note 10)   (phot.mag;em.opt.U)
  Bmag mag (n) Photometric magnitude in Optical B band between 400 and 500 nm (Note 10)   (phot.mag;em.opt.B)
  Gmag mag (n) Photometric magnitude in Optical G Gaia band (phot.mag;em.opt.R)
  Vmag mag (n) Photometric magnitude in Optical V band between 500 and 600 nm (Note 10)   (phot.mag;em.opt.V)
  gmag mag (n) Photometric magnitude in Optical g band between 400 and 500 nm (Note 10)   (phot.mag;em.opt.R)
  rmag mag (n) Photometric magnitude in Optical r band between 600 and 750 nm (Note 10)   (phot.mag;em.opt.R)
  imag mag (n) Photometric magnitude in Optical i band between 750 and 1000 nm (Note 10)   (phot.mag;em.opt.I)
  zmag mag (n) Photometric magnitude in Optical z band (Note 10)   (phot.mag;em.opt.I)
  Jmag mag (n) Photometric magnitude in Infrared J band between 1000 and 1500 nm (Note 11)   (phot.mag;em.IR.J)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  Kmag mag (n) Photometric magnitude in Infrared K band between 2000 and 3000 nm (Note 11)   (phot.mag;em.IR.K)
  S1.4 Jy (n) Radio flux between 750 and 1500 MHz (20cm) (phot.flux.density;em.radio.1500-3000MHz)
  S2.3 Jy (n) Radio flux between 1500 and 3000 MHz (13cm) (phot.flux.density;em.radio.1500-3000MHz)
  S5.0 Jy (n) Radio flux between 3 and 6 GHz (6cm) (phot.flux.density;em.radio.3-6GHz)
  S8.4 Jy (n) Radio flux between 6 and 12 GHz (3.6cm) (phot.flux.density;em.radio.6-12GHz)
  S23 Jy (n) Radio flux between 12 and 30 GHz (1.2cm) (phot.flux.density;em.mm.30-50GHz)
  I1B  (n) Sharp morphology index in band B (src.morph.param)
  I2B  (n) Sround morphology index in band B (src.morph.param)
  I3B  (n) Ground morphology index in band B (src.morph.param)
  I1R  (n) Sharp morphology index in band R (src.morph.param)
  I2R  (n) Sround morphology index in band R (src.morph.param)
  I3R  (n) Ground morphology index in band R (src.morph.param)
  I1I  (n) Sharp morphology index in band I (src.morph.param)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  I2I  (n) Sround morphology index in band I (src.morph.param)
  I3I  (n) Ground morphology index in band I (src.morph.param)
  BMAG mag (n) Absolute magnitude in band B (phys.magAbs;em.opt.B)
  IMAG mag (n) Absolute magnitude in band I (phys.magAbs;em.opt.I)
  uMAG mag (n) Absolute magnitude in band u (phys.magAbs)
  gMAG mag (n) Absolute magnitude in band g (phys.magAbs)
  rMAG mag (n) Absolute magnitude in band r (phys.magAbs)
  iMAG mag (n) Absolute magnitude in band i (phys.magAbs)
  zMAG mag (n) Absolute magnitude in band z (phys.magAbs)

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