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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

  ICRF3 radio-loud quasars with Gaia DR2 data (Makarov+, 2019)
Post annotation
1.J/ApJ/873/132/table1Best quality radio-optical reference frame objects (2119 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)
  IERS (char) IERS designation (HHMM+DDd; B1950) (;meta.main)
  RAICRS deg (i) ICRF3 right ascension (pos.eq.ra;meta.main)
  DEICRS deg (i) [-85.6/88.2] ICRF3 declination (pos.eq.dec;meta.main)
  Gaia  Gaia DR2 unique source identifier (
  Plx mas (n) [-7.858/4.369] Gaia DR2 parallax (pos.parallax)
  e_Plx mas (n) [0.019/2.617] Uncertainty in Gaia parallax (stat.error;pos.parallax)
  Gmag mag [13.26/21.2] Gaia DR2 G magnitude (phot.mag;em.opt)
  BPmag mag (n) [13.59/21.8] Gaia DR2 BP magnitude (phot.mag;em.opt.B)
  RPmag mag (n) [12.6/20.9] Gaia DR2 RP magnitude (phot.mag;em.opt.R)
  z  (n) [0.018/4.72] Redshift (Note 1)   (src.redshift)
  d1 mas [-32.4/19.5] Gaia-ICRF3 difference in RA (times cos(DE)) (pos.eq.ra;arith.diff)
  d2 mas [-11.8/27.6] Gaia-ICRF3 difference in DEC (pos.eq.dec;arith.diff)
  u   [0.026/3] Normalized position difference (Note 2)   (pos;arith.diff)
  ICRF2  (n)Display data from the ICRF2 (I/323) and VLBI ICRF2 (Fey+, 2015, J/AJ/150/58) (meta.ref.url)
  OCARS  (n)Display data from Titov+, 2009, J/A+A/506/1477 (meta.ref.url)
  Simbad  ask the Simbad data-base about this object (meta.ref.url)

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