VizieR

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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/ApJS/184/138
  XID II: RASS/BSC-2MASS/PSC cross-association (Haakonsen+, 2009)
ReadMe+ftp
2009ApJS..184..138H
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJS/184/138/table3Association catalog (18806 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)
  1RXS (char) RASS/BSC source name (JHHMMSS.s+DDMMSS) (meta.id;meta.main)
  obj (char) SIMBAD object type of RASS/BSC source (src.class)
  xrt ct/s RASS/BSC source count rate (phot.count;em.X-ray)
  e_xrt ct/s RASS/BSC source count rate uncertainty (stat.error)
  P(noid)  Probability of no association (Note 1)   (stat.probability)
  2MASS (char) 2MASS/PSC source name (JHHMMSSss+DDMMSSs) (meta.id.cross)
  obj2 (char) SIMBAD object type of 2MASS/PSC source (src.class)
  Jmag mag (n) 2MASS/PSC source J-band magnitude (phot.mag;em.IR.J)
  P(id)  (n) Probability of unique association (Note 1)   (stat.probability)
  Simbad  ask the Simbad data-base about this object
  _RA deg (i) Positions from 1RXS name (right ascension part) (pos.eq.ra;meta.main)
  _DE deg (i) Positions from 1RXS name (declination part) (pos.eq.dec;meta.main)

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