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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

  Optical positions of ICRF sources (Assafin+, 2003)
Post annotation
1.J/AJ/125/2728/table4Optical positions for 172 ICRF sources from CTIO CCD observations (172 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)
  ICRF (char) The ICRF source name (;meta.main)
  RAJ2000 "h:m:s" (i) Hour of optical right ascension (ICRF) (pos.eq.ra;meta.main)
  DEJ2000 "d:m:s" (i) Degree of optical declination (ICRF) (pos.eq.dec;meta.main)
  e_RAs arcsec (n) Standard deviation of the mean in RA (Note 1)   (stat.error)
  e_DEs arcsec (n) Standard deviation of the mean in DE (Note 1)   (stat.error)
  Num  Number of CCD observations (meta.number)
  Epoch yr Mean epoch of the observations (time.epoch)
  Rmag mag The UCAC R-band magnitude (phot.mag;em.opt.R)
  e_Rmag mag (n) Standard deviation of the mean in Rmag (Note 1)   (stat.error)
  DRAcosDE arcsec Right ascension optical-radio offset (pos.eq.ra;arith.diff)
  DDE arcsec Declination optical-radio offset (pos.eq.dec;arith.diff)
  sigmaRA arcsec Mean right ascension error of the "plate solution" (stat.error)
  sigmaDE arcsec Mean declination error of the "plate solution" (stat.error)
  Comm (char) Source CCD image peculiarity comments (Note 2)   (meta.note)

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