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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=25710
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ColumnValue  Explain   (UCD)
_RAJ200000 42 27.90 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DEJ2000+41 26 01.5 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data) (pos.eq.dec)
_RAB195000 39 43.67 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DEB1950+41 09 35.7 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data) (pos.eq.dec)
_Glon121.1257 deg Galactic longitude (computed by VizieR, not part of the original data) (pos.galactic.lon)
_Glat-21.4065 deg Galactic latitude (computed by VizieR, not part of the original data) (pos.galactic.lat)
25710recno 25710  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

1RXSJ004227.9+412601  ROSAT All-Sky Survey Catalogue source name (Note 1)   (meta.id;meta.main)
RAJ2000010.61625 deg Right ascension (J2000), decimal degrees (pos.eq.ra;meta.main)
DEJ2000+41.43375 deg Declination (J2000), decimal degrees (pos.eq.dec;meta.main)
PosErr 23 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 2.23e-02 ct/s Source countrate (Note 4)   (phot.count;em.X-ray)
e_Count 9.13e-03 ct/s Error on Count (Note 4)   (stat.error;phot.count)
bgCt 9.58e-04 ct/s/arcmin2 Background countrate (Note 4)   (arith.rate;instr.background;em.X-ray)
ExpTime 481 s Exposure time (time.duration;obs.exposure)
HR1 0.54   [-1/1] Hardness ratio 1 (Note 5)   (phot.flux;arith.ratio)
e_HR1 0.35   Error on HR1 (Note 6)   (stat.error)
HR2-0.33   [-1/1] hardness ratio 2 (Note 5)   (phot.flux;arith.ratio)
e_HR2 0.41   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 9   Likelihood of source detection algorithm (Note 7)   (stat.likelihood)
ExtRad 300 arcsec Extraction radius (phys.angSize)
PrioFlags101001   [01] priority flags (Note 8)   (meta.code.error)
PHAb   [ABCDb] PHA range of best detection (Note 9)   (meta.code)
VigFactor 0.70   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)
SASS33010002  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 33  Source number (meta.id)
ObsBeg1991-01-09T23:45 s Beginning of observation (year, offset 1900) (time.epoch)
ObsEnd1991-01-12T01:12 s Beginning of observation (year, offset 1900) (time.epoch)
Rel80   [0,99] Reliability of Source (stat.fit.goodness)
  
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