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Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  QSOs redshifts and spectra in ESO/SERC field 927 (Clowes+ 1999)
Post annotation
1.J/MNRAS/309/48/table2Observations of the confirmed QSO candidates (63 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)
  RA50 "h:m:s" Right ascension (B1950.0) (pos.eq.ra)
  DE50 "d:m:s" Declination (B1950.0) (pos.eq.dec)
  RAJ2000 "h:m:s" (i) Right ascension (J2000.0) (pos.eq.ra;meta.main)
  DEJ2000 "d:m:s" (i) Declination (J2000.0) (pos.eq.dec;meta.main)
  Obs1 "Y:M:D" (n)Observation date (time.epoch;obs)
  Obs2 d Last day of observation (time.epoch;obs)
  Tint s Integration time (time.epoch)
  LSP  (n) Automated Quasar Detection (AQD) Line-Strength Parameter value (spect.line.intensity)
  n_LSP (char) [SW] 'S' for strong-lined (high LSP) 'W' for weak-lined (low LSP) (meta.note)
  Bmag mag (n) BJ magnitude (phot.mag;em.opt.B)
  z  (n) Redshift (src.redshift)
  u_z (char) [?] Uncertainty flag on z (meta.code.error;src.redshift)
  l_EW (char) Limit flag in EW (meta.code.error;spect.line.eqWidth)
  EW 0.1nm (n) Equivalent width (spect.line.eqWidth)
  Line  (n) Identity of the strongest emission line (Note 1)   (;spect.line)
  Com (char) Comment (Keable 1987 refers to Keable-s PhD thesis, Univ. Edinburgh) (meta.note)
  Simbad  ask the Simbad data-base about this object (meta.ref)

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