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J/ApJ/737/45/table1 Variable 1.4GHz radio sources from NVSS and FIRST (Ofek+, 2011)
Observing times of NVSS sources (1773484 rows)
  recno=651777
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ColumnValue  Explain   (UCD)
_RAJ200000 27 52.81007 "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)
_DEJ2000-01 48 35.8990 "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)
_RAB195000 25 19.30406 "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)
_DEB1950-02 05 11.2334 "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)
_Glon109.37247288 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-64.05977851 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)
651777recno 651777  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

RAJ2000006.970042 deg (i) Right Ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
DEJ2000-01.809972 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
Sp 8.70 mJy 1.4GHz peak flux (phot.flux.density;em.radio.750-1500MHz)
e_Sp 1.20 mJy The rms in PFlux (stat.error;src.spType)
Nobs 3  Number of observations (meta.number)
t2449352.213 d Mean Julian day of the observation (Note 1)   (time.epoch;obs;stat.mean)
dt 28.980 d Time span of the observations (Note)   (time.interval)

NVSSNVSS  Cross-match with NVSS (Cat. VIII/65) within 1" (meta.ref.url)
  
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