VizieR

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VizieR

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IX/13/2e The 2E Catalogue (Harris+ 1994)
The catalogue (5948 rows)
  recno=2765
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ColumnValue  Explain   (UCD)
_RAJ200009 32 07.301 "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+21 30 47.09 "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)
_RAB195009 29 17.501 "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+21 44 04.00 "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)
_Glon208.690523 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+44.533373 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)
2765recno 2765  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

CATNUM2151   [1/4809] Catalogue number of the source (Note 1)   (meta.id;meta.main)
SEQNUM 4922  Sequence number for the observation (meta.id)
FLDNUM 1  Field number of the source (obs.field)
RA195009 29 17.5 "h:m:s" (i) Right ascension 1950 (hours) (pos.eq.ra;meta.main)
DE1950+21 44 04 "d:m:s" (i) Declination 1950 (sign) (pos.eq.dec;meta.main)
PosErr 55 arcsec Positional error (arcsec) (stat.error)
Crate 0.02120 ct/s Corrected count rate (phot.count;em.X-ray)
e_Crate 0.00600 ct/s Error on the count rate (stat.error)
LivTime 2528.0 s Live time (in seconds, at the field center) (time.duration;obs.exposure)
NetCount 15.7  Net counts in the detect cell (phot.count;em.X-ray)
BkgCount 4.3  Background counts in the detect cell (instr.background)
S/N 3.5  Signal to noise ratio for the detection (stat.snr)
SizCor 0.9  Size correction factor (Note 2)   (arith.factor)
RECode 1106  Ribs and edges code (Note 3)   (meta.code)
OffAxis 32.8 arcmin Dist. between source & field center (arcmin) (pos.angDistance)
SrcFlag AH   [AaHLEI ] Source flags (Note 4)   (meta.code)
RefFlag G  Reference and identification flag (Note 5)   (meta.ref)
  
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