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

  
J/MNRAS/392/19
  The 2dF-SDSS QSO survey (Croom+, 2009)
ReadMe+ftp
2009MNRAS.392...19C
Similar Catalogs
Post annotation 		img(gal)
1.J/MNRAS/392/19/tablea1The observed 2dF field centres in the 2SLAQ survey with dates observed (99 rows)

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)
  Fld (char) 2SLAQ field name (meta.id;obs.field)
  RAJ2000 "h:m:s" (i) Right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  Date "Y:M:D" (n)Date of observation (time.epoch)
  Nobs1  Primary sample number of 2SLAQ QSO candidates observed (meta.number)
  NQ1  Primary sample number of good quality QSO IDs (ID quality 1) (meta.number)
  Nf11 % Primary sample fraction of good quality IDs (quality 1) for all object types (meta.code.qual)
  NobsA  All number of 2SLAQ QSO candidates observed (meta.number)
  NQA  All number of good quality QSO IDs (ID quality 1) (meta.number)
  Nf1A % All fraction of good quality IDs (quality 1) for all object types (meta.note)

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