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  VLBI ICRF2 (Fey+, 2015)
Post annotation
1.J/AJ/150/58/icrf2Coordinates of the International Celestial Reference Frame (ICRF2) sources (tables 5–7) (3414 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)
  Source (char) ICRF2 "defining" sources (table5), non-Very Long Baseline Array (VLBA) Calibrator Surveys (VCS) sources (table6), VCS-only sources (table7) (src.class)
  Compar  Display the data from the new reduction of Maklin (2014, Cat. J/MNRAS/445/845) and this paper (meta.ref.url)
  ICRF2 (char) Designation in International Celestial Reference Frame (ICRF2) (Note 1)   (;meta.main)
  IERS (char) Designation in International Earth Rotation and Reference Systems Service (IERS) (Note 2)   (
  RAJ2000 "h:m:s" (i) Hour of Right Ascension (J2000) (pos.eq.ra;meta.main)
  e_RAJ2000 s Uncertainty in RAs (stat.error;pos.eq.ra)
  DEJ2000 "d:m:s" (i) Degree of Declination (J2000) (pos.eq.dec;meta.main)
  e_DEJ2000 arcsec Uncertainty in DEs (stat.error;pos.eq.dec)
  Corr   [-1/1] Correlation between estimates of RA and DE (stat.correlation;pos.eq.ra;pos.eq.dec)
  MJD d [47002.2/54818.7] Modified Julian date of observation mean (JD-2400000.0) (time.epoch;obs;stat.mean)
  MJD0 d [44090.1/54818.7] Modified Julian date of observation start (JD-2400000.0) (time.epoch)
  MJD1 d [48162.4/54907.9] Modified Julian date of observation end (JD-2400000.0) (time.epoch)
  Nexp   [1/4068] Number of experiments (meta.number)
  Nobs   [3/337322] Number of observations (meta.number;obs)
  Simbad  ask the Simbad data-base about this object (meta.ref.url)

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