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IX/10A/1rxs ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)
The 1RXS catalogue (18806 rows)
  1RXS===J004241.8+411535
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ColumnValue  Explain   (UCD)
_RAJ200000 42 41.80 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DEJ2000+41 15 35.0 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data) (pos.eq.dec)
_RAB195000 39 57.57 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DEB1950+40 59 09.4 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data) (pos.eq.dec)
_Glon121.1655 deg Galactic longitude (computed by VizieR, not part of the original data) (pos.galactic.lon)
_Glat-21.5820 deg Galactic latitude (computed by VizieR, not part of the original data) (pos.galactic.lat)
611recno 611  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

1RXSJ004241.8+411535  ROSAT All-Sky Survey Catalogue source name (Note 1)   (meta.id;meta.main)
n_1RXS    [*] Names modified from previous version (meta.note)
RAJ2000010.67417 deg Right ascension (J2000), decimal degrees (pos.eq.ra;meta.main)
DEJ2000+41.25972 deg Declination (J2000), decimal degrees (pos.eq.dec;meta.main)
PosErr10 arcsec Total positional error (including 6" systematic error) (stat.error)
ScrFlags___T_   [T_] screening flags (Note 2)   (meta.code)
NewFlag>   [T._] 'new data' flags (Note 3)   (meta.code)
Count 9.60e-01 ct/s Source countrate (Note 4)   (phot.count;em.X-ray)
e_Count 4.50e-02 ct/s Error on Count (Note 4)   (stat.error;phot.count)
bgCt 9.28e-04 ct/s/arcmin2 Background countrate (Note 4)   (arith.rate;instr.background)
ExpTime 496 s Exposure time (time.duration;obs.exposure)
HR1 0.84   [-1/1] Hardness ratio 1 (Note 5)   (phot.flux;arith.ratio)
e_HR1 0.02   Error on HR1 (Note 6)   (stat.error)
HR2 0.35   [-1/1] hardness ratio 2 (Note 5)   (phot.flux;arith.ratio)
e_HR2 0.05   Error on HR2 (Note 6)   (stat.error)
Extent102 arcsec Source extent, by which the source image exceeds the point spread function. (instr.det.psf)
L_Extent 421   Likelihood of source extent (Note 7)   (stat.likelihood)
Ldetect 737   Likelihood of source detection algorithm (Note 7)   (stat.likelihood)
ExtRad 300 arcsec Extraction radius (phys.angSize)
PrioFlags111111   [01] priority flags (Note 8)   (meta.code.error)
PHAb   [ABCDb] PHA range of best detection (Note 9)   (meta.code)
VigFactor 0.72   Vignetting factor (arith.factor)
IncDate1996-06-14 "Y:M:D" Date when source was included (Note 10)   (time.epoch)
UpdDate  "Y:M:D" Date when source properties changed (Note 11)   (time.epoch)
Ncand622  Number of identification candidates in the correlation catalogue (meta.number)
SASS33010002  Identification number of SASS field (Note 12)   (meta.id;obs.field)
MASOL0031  SASS source number (MASOL number) in SASS field (mainly for internal use) (meta.id;obs.field)
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IX/10A/1rxs_cor ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)
1RXS Correlation entries (18806 rows)
  1RXS===J004241.8+411535
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200000 42 41.8 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DEJ2000+41 15 35 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data) (pos.eq.dec)
_RAB195000 39 57.6 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DEB1950+40 59 09 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data) (pos.eq.dec)
_Glon121.1655 deg Galactic longitude (computed by VizieR, not part of the original data) (pos.galactic.lon)
_Glat-21.5821 deg Galactic latitude (computed by VizieR, not part of the original data) (pos.galactic.lat)
611recno 611  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

1RXSJ004241.8+411535  1RXS name (meta.id;meta.main)
RAJ2000010.6742 deg Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+41.2597 deg Declination (J2000) (pos.eq.dec;meta.main)
PosErr10 arcsec Total positional error (stat.error)
Nid622  Number of correlated sources (meta.number)
bandPosx   [x] origin of the source position (always x: X-ray) (instr.bandwidth)
gal_Nh 0.658 10+21cm-2 Galactic HI column density (in 1021atoms/cm2) (phys.columnDensity;pos.galactic)
GLON121.1665 deg Galactic longitude (pos.galactic.lon)
GLAT-21.5822 deg Galactic latitude (pos.galactic.lat)
HR1 0.84  Hardness ratio 1 (phot.flux;arith.ratio)
e_HR1 0.02  rms uncertainty on HR1 (stat.error)
HR2 0.35  Hardness ratio 2 (phot.flux;arith.ratio)
e_HR2 0.05  rms uncertainty on HR2 (stat.error)
Extent102  Source extent (phys.angSize)
L_Extent421  Likelihood of source extent (stat.likelihood)
Ldetect737  Likelihood of source detection algorithm (stat.likelihood)
ExpTime 496 s Exposure time (time.duration;obs.exposure)
Count 9.6e-01 ct/s Source count rate (phot.count;em.X-ray)
e_Count 4.5e-02 ct/s rms uncertainty on Count (stat.error;phot.count)
Flux1 3.26e-11 mW/m2 X-ray flux 1 in 0.1-2.4keV energy range (phot.flux;em.X-ray)
Flux2 1.22e-11 mW/m2 X-ray flux 2 in 0.1-2.4keV energy range (phot.flux;em.X-ray)
begDate1991-01-10 "Y:M:D" First date of observation (time.epoch;obs)
begDate.f 0.12 d First date of observation (day fraction) (time.epoch)
endDate1991-01-11 "Y:M:D" Last date of observation (time.epoch;obs)
endDate.f 0.92 d Last date of observation (day fraction) (time.epoch)
IncDate1996-06-14 "Y:M:D" Date when source was included (time.epoch)
UpdDate  "Y:M:D" Date when source properties changed (time.epoch)
  
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