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J/ApJ/737/45/table2 Variable 1.4GHz radio sources from NVSS and FIRST (Ofek+, 2011)
Observing Times of FIRST Sources (816331 rows)
  recno=139323
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ColumnValue  Explain   (UCD)
_RAJ200023 20 11.61287 "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 12 57.6110 "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)
_RAB195023 17 38.06156 "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+00 56 31.6117 "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)
_Glon081.49693518 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-54.14666341 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)
139323recno 139323  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

RAJ2000350.048387 deg (i) Right Ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
DEJ2000+01.216003 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
Sp 9.03 mJy 1.4GHz peak flux (phot.flux.density;em.radio.750-1500MHz)
e_Sp 0.15 mJy The rms in PFlux (stat.error;src.spType)
Nobs 3  Number of observations (meta.number)
t2450003.059 d Mean Julian day of the observation (Note 1)   (time.epoch;obs;stat.mean)
dt 5.984 d Time span of the observations δt (Note 1)   (time.interval)

FIRSTFIRST  Cross-match with FIRST (Cat. VIII/90) within 1" (meta.ref.url)
  
elapse time 1

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