VizieR

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VizieR

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I/323/icrf2 International Celestial Reference Frame 2, ICRF2 (Ma+, 2009)
ICRF2 catalog (tn35.pdf) (3414 rows)
  recno=208
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ColumnValue  Explain   (UCD)
_RAJ200001 21 56.8616995600 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000+04 22 24.734334000 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195001 19 21.3896371122 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950+04 06 44.102590160 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon137.2505958006947 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-57.6475415112343 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
208recno 208  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

ICRFJ012156.8+042224  International Celestial Reference Frame name, (JHHMMSS.s+DDMMSS) (pos.frame)
IVS0119+041  International VLBI Service name, (HHMM+DDd, B1950 equinox) (meta.id)
IERS0119+041  International Earth Rotation and Reference Systems Service name (HHMM+DDd, B1950 equinox) (pos)
flN   [DVN] Flag on source role (Note 1)   (meta.note)
RAJ200001 21 56.86169956 "h:m:s" (i) Right Ascension (J2000) (pos.eq.ra;meta.main)
e_RAJ2000 0.00000277 s Inflated formal error in Right Ascension (stat.error;pos.eq.ra)
DEJ2000+04 22 24.7343340 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
e_DEJ2000 0.0000433 arcsec Inflated formal error in Declination (stat.error;pos.eq.dec)
Corr-0.037   [-1/1] Correlation between RA and Dec (stat.correlation)
Ep49896.8 d Mean observation epoch (MJD) (time.epoch;obs;stat.mean)
Of46977.9 d First observation epoch (MJD) (time.epoch;obs)
Ol54844.7 d Last observation epoch (MJD) (time.epoch;obs)
Nexp1706  Number of VLBI sessions (meta.number)
Nobs 43604  Number of VLBI observations (meta.number)
  
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