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IX/29/rass_fsc ROSAT All-Sky Survey Faint Source Catalog (Voges+ 2000)
The ROSAT All Sky Survey Faint Source Catalog (105924 rows)
  recno=37174
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ColumnValue  Explain   (UCD)
_RAJ200012 36 18.0000 "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+25 59 02.508 "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)
_RAB195012 33 49.2256 "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+26 15 32.664 "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)
_Glon230.7546314 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+86.4268555 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)
37174recno 37174  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

1RXSJ123618.0+255902  (i) ROSAT All-Sky Survey Catalogue source name (Note 1)   (meta.id;meta.main)
RAJ2000189.07500 deg (i) Right ascension (J2000), decimal degrees (pos.eq.ra;meta.main)
DEJ2000+25.98403 deg (i) Declination (J2000), decimal degrees (pos.eq.dec;meta.main)
PosErr 12 arcsec Total positional error (including 6" systematic error) (stat.error)
ScrFlagsF....   [T.F] screening flags (Note 2)   (meta.code)
NewFlag....   [T._] 'new data' flags (Note 3)   (meta.code)
Count 4.14e-02 ct/s Source countrate (Note 4)   (phot.count;em.X-ray)
e_Count 1.15e-02 ct/s Error on Count (Note 4)   (stat.error;phot.count)
bgCt 1.51e-03 ct/s/arcmin2 Background countrate (Note 4)   (arith.rate;instr.background;em.X-ray)
ExpTime 477 s Exposure time (time.duration;obs.exposure)
HR1 0.75   [-1/1] Hardness ratio 1 (Note 5)   (phot.flux;arith.ratio)
e_HR1 0.18   Error on HR1 (Note 6)   (stat.error)
HR2 0.44   [-1/1] hardness ratio 2 (Note 5)   (phot.flux;arith.ratio)
e_HR2 0.20   Error on HR2 (Note 6)   (stat.error)
Extent 12 arcsec Source extent, by which the source image exceeds the point spread function. (instr.det.psf)
L_Extent 1   Likelihood of source extent (Note 7)   (stat.likelihood)
Ldetect 25   Likelihood of source detection algorithm (Note 7)   (stat.likelihood)
ExtRad 300 arcsec Extraction radius (phys.angSize)
PrioFlags111101   [01] priority flags (Note 8)   (meta.code.error)
PHAb   [ABCDb] PHA range of best detection (Note 9)   (meta.code)
VigFactor 0.73   Vignetting factor (arith.factor)
IncDate2000-05-18 "Y:M:D" [000518] Date when source was included (Note 10)   (time.epoch)
Ncand 0  Number of identification candidates in the correlation catalogue (meta.number)
SASS33012031  Identification number of SASS field (Note 12)   (meta.id;obs.field)
MASOL 132  SASS source number (MASOL number) in SASS field (mainly for internal use) (meta.id)
src 0  Source number (meta.id)
ObsBeg1990-12-09T23:45 s Beginning of observation (year, offset 1900) (time.epoch)
ObsEnd1990-12-12T01:12 s Beginning of observation (year, offset 1900) (time.epoch)
Rel99   [0,99] Reliability of Source (stat.fit.goodness)
  
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