VizieR

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VizieR

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IX/13/2e The 2E Catalogue (Harris+ 1994)
The catalogue (5948 rows)
  recno=2884
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ColumnValue  Explain   (UCD)
_RAJ200010 19 37.190 "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+19 52 18.02 "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)
_RAB195010 16 53.001 "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+20 07 23.00 "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)
_Glon216.455308 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+54.583934 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)
2884recno 2884  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

CATNUM2259   [1/4809] Catalogue number of the source (Note 1)   (meta.id;meta.main)
SEQNUM 913  Sequence number for the observation (meta.id)
FLDNUM 1  Field number of the source (obs.field)
RA195010 16 53.0 "h:m:s" (i) Right ascension 1950 (hours) (pos.eq.ra;meta.main)
DE1950+20 07 23 "d:m:s" (i) Declination 1950 (sign) (pos.eq.dec;meta.main)
PosErr 31 arcsec Positional error (arcsec) (stat.error)
Crate 1.17200 ct/s Corrected count rate (phot.count;em.X-ray)
e_Crate 0.01200 ct/s Error on the count rate (stat.error)
LivTime 17731.1 s Live time (in seconds, at the field center) (time.duration;obs.exposure)
NetCount 15494.6  Net counts in the detect cell (phot.count;em.X-ray)
BkgCount 3428.4  Background counts in the detect cell (instr.background)
S/N 97.7  Signal to noise ratio for the detection (stat.snr)
SizCor 1.5  Size correction factor (Note 2)   (arith.factor)
RECode 0  Ribs and edges code (Note 3)   (meta.code)
OffAxis 0.7 arcmin Dist. between source & field center (arcmin) (pos.angDistance)
SrcFlag L   [AaHLEI ] Source flags (Note 4)   (meta.code)
RefFlag S  Reference and identification flag (Note 5)   (meta.ref)
  
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