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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=39844
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ColumnValue  Explain   (UCD)
_RAJ200001 56 55.0992 "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+24 22 57.504 "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)
_RAB195001 54 06.7988 "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+24 08 20.185 "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)
_Glon141.4615019 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-36.1218708 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)
39844recno 39844  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

1RXSJ015655.1+242257  (i) ROSAT All-Sky Survey Catalogue source name (Note 1)   (meta.id;meta.main)
RAJ2000029.22958 deg (i) Right ascension (J2000), decimal degrees (pos.eq.ra;meta.main)
DEJ2000+24.38264 deg (i) Declination (J2000), decimal degrees (pos.eq.dec;meta.main)
PosErr 21 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 2.47e-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 7.67e-04 ct/s/arcmin2 Background countrate (Note 4)   (arith.rate;instr.background;em.X-ray)
ExpTime 263 s Exposure time (time.duration;obs.exposure)
HR1 1.00   [-1/1] Hardness ratio 1 (Note 5)   (phot.flux;arith.ratio)
e_HR1 0.71   Error on HR1 (Note 6)   (stat.error)
HR2 1.00   [-1/1] hardness ratio 2 (Note 5)   (phot.flux;arith.ratio)
e_HR2 0.96   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 10   Likelihood of source detection algorithm (Note 7)   (stat.likelihood)
ExtRad 300 arcsec Extraction radius (phys.angSize)
PrioFlags101000   [01] priority flags (Note 8)   (meta.code.error)
PHAb   [ABCDb] PHA range of best detection (Note 9)   (meta.code)
VigFactor 0.67   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)
SASS33013005  Identification number of SASS field (Note 12)   (meta.id;obs.field)
MASOL 26  SASS source number (MASOL number) in SASS field (mainly for internal use) (meta.id)
src 11  Source number (meta.id)
ObsBeg1991-01-20T22:19 s Beginning of observation (year, offset 1900) (time.epoch)
ObsEnd1991-01-22T06:14 s Beginning of observation (year, offset 1900) (time.epoch)
Rel86   [0,99] Reliability of Source (stat.fit.goodness)
  
elapse time 0

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