VizieR

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VizieR

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IX/13/2e The 2E Catalogue (Harris+ 1994)
The catalogue (5948 rows)
  recno=4330
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ColumnValue  Explain   (UCD)
_RAJ200015 47 42.808 "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+20 52 21.16 "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)
_RAB195015 45 30.401 "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 01 32.00 "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)
_Glon033.898829 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+49.460522 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)
4330recno 4330  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

CATNUM3500   [1/4809] Catalogue number of the source (Note 1)   (meta.id;meta.main)
SEQNUM 240  Sequence number for the observation (meta.id)
FLDNUM 1  Field number of the source (obs.field)
RA195015 45 30.4 "h:m:s" (i) Right ascension 1950 (hours) (pos.eq.ra;meta.main)
DE1950+21 01 32 "d:m:s" (i) Declination 1950 (sign) (pos.eq.dec;meta.main)
PosErr 38 arcsec Positional error (arcsec) (stat.error)
Crate 0.19100 ct/s Corrected count rate (phot.count;em.X-ray)
e_Crate 0.00780 ct/s Error on the count rate (stat.error)
LivTime 4527.7 s Live time (in seconds, at the field center) (time.duration;obs.exposure)
NetCount 609.7  Net counts in the detect cell (phot.count;em.X-ray)
BkgCount 13.3  Background counts in the detect cell (instr.background)
S/N 24.4  Signal to noise ratio for the detection (stat.snr)
SizCor 1.2  Size correction factor (Note 2)   (arith.factor)
RECode 0  Ribs and edges code (Note 3)   (meta.code)
OffAxis 5.5 arcmin Dist. between source & field center (arcmin) (pos.angDistance)
SrcFlag AH   [AaHLEI ] Source flags (Note 4)   (meta.code)
RefFlag *  Reference and identification flag (Note 5)   (meta.ref)
  
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