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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=27858
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ColumnValue  Explain   (UCD)
_RAJ200013 53 27.3000 "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+40 16 58.008 "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)
_RAB195013 51 20.3073 "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+40 31 41.704 "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)
_Glon082.6061618 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+71.6322641 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)
27858recno 27858  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

1RXSJ135327.3+401658  (i) ROSAT All-Sky Survey Catalogue source name (Note 1)   (meta.id;meta.main)
RAJ2000208.36375 deg (i) Right ascension (J2000), decimal degrees (pos.eq.ra;meta.main)
DEJ2000+40.28278 deg (i) Declination (J2000), decimal degrees (pos.eq.dec;meta.main)
PosErr 16 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 4.78e-02 ct/s Source countrate (Note 4)   (phot.count;em.X-ray)
e_Count 1.09e-02 ct/s Error on Count (Note 4)   (stat.error;phot.count)
bgCt 1.52e-03 ct/s/arcmin2 Background countrate (Note 4)   (arith.rate;instr.background;em.X-ray)
ExpTime 655 s Exposure time (time.duration;obs.exposure)
HR1 0.42   [-1/1] Hardness ratio 1 (Note 5)   (phot.flux;arith.ratio)
e_HR1 0.22   Error on HR1 (Note 6)   (stat.error)
HR2 0.11   [-1/1] hardness ratio 2 (Note 5)   (phot.flux;arith.ratio)
e_HR2 0.24   Error on HR2 (Note 6)   (stat.error)
Extent 10 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 30   Likelihood of source detection algorithm (Note 7)   (stat.likelihood)
ExtRad 300 arcsec Extraction radius (phys.angSize)
PrioFlags111110   [01] priority flags (Note 8)   (meta.code.error)
PHAb   [ABCDb] PHA range of best detection (Note 9)   (meta.code)
VigFactor 0.71   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)
SASS33010031  Identification number of SASS field (Note 12)   (meta.id;obs.field)
MASOL 75  SASS source number (MASOL number) in SASS field (mainly for internal use) (meta.id)
src100  Source number (meta.id)
ObsBeg1990-07-11T23:16 s Beginning of observation (year, offset 1900) (time.epoch)
ObsEnd1990-12-21T18:57 s Beginning of observation (year, offset 1900) (time.epoch)
Rel99   [0,99] Reliability of Source (stat.fit.goodness)
  
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