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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=27
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ColumnValue  Explain   (UCD)
_RAJ200012 25 03.1008 "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+88 53 24.972 "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 30 24.9547 "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+89 09 59.488 "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)
_Glon123.0766035 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+28.2305602 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)
27recno 27  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

1RXSJ122503.1+885325  (i) ROSAT All-Sky Survey Catalogue source name (Note 1)   (meta.id;meta.main)
RAJ2000186.26292 deg (i) Right ascension (J2000), decimal degrees (pos.eq.ra;meta.main)
DEJ2000+88.89027 deg (i) Declination (J2000), decimal degrees (pos.eq.dec;meta.main)
PosErr 19 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 1.49e-02 ct/s Source countrate (Note 4)   (phot.count;em.X-ray)
e_Count 5.62e-03 ct/s Error on Count (Note 4)   (stat.error;phot.count)
bgCt 7.03e-04 ct/s/arcmin2 Background countrate (Note 4)   (arith.rate;instr.background;em.X-ray)
ExpTime 861 s Exposure time (time.duration;obs.exposure)
HR1-0.74   [-1/1] Hardness ratio 1 (Note 5)   (phot.flux;arith.ratio)
e_HR1 0.27   Error on HR1 (Note 6)   (stat.error)
HR2 1.00   [-1/1] hardness ratio 2 (Note 5)   (phot.flux;arith.ratio)
e_HR2 1.61   Error on HR2 (Note 6)   (stat.error)
Extent 0 arcsec Source extent, by which the source image exceeds the point spread function. (instr.det.psf)
L_Extent    Likelihood of source extent (Note 7)   (stat.likelihood)
Ldetect 11   Likelihood of source detection algorithm (Note 7)   (stat.likelihood)
ExtRad 300 arcsec Extraction radius (phys.angSize)
PrioFlags110011   [01] priority flags (Note 8)   (meta.code.error)
PHAA   [ABCDb] PHA range of best detection (Note 9)   (meta.code)
VigFactor 0.74   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)
SASS33001001  Identification number of SASS field (Note 12)   (meta.id;obs.field)
MASOL 68  SASS source number (MASOL number) in SASS field (mainly for internal use) (meta.id)
src 30  Source number (meta.id)
ObsBeg1990-09-12T08:24 s Beginning of observation (year, offset 1900) (time.epoch)
ObsEnd1990-09-16T22:48 s Beginning of observation (year, offset 1900) (time.epoch)
Rel90   [0,99] Reliability of Source (stat.fit.goodness)
  
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