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VizieR

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IX/28A/hricat ROSAT HRI Pointed Observations (1RXH) (ROSAT Team, 2000)
ROSAT Source Catalog of Pointed Observations with the High Resolution Imager (1RXH) (108514 rows)
  recno=2436
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Note: The ``short'' version of the catalogue can be retrieved by a selecting     *+*     in the SEQflags column

ColumnValue  Explain   (UCD)
_RAJ200000 42 42.576 "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 51 54.36 "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)
_RAB195000 39 58.489 "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 35 28.78 "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)
_Glon121.152555 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-21.976491 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)
2436recno 2436  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SeqDetec1rh600930n00.028  Sequence Detection Name. (Note)   (meta.id;obs)
n_1RXH    Number of sources sharing a common 1RXH name (Note)   (meta.note)
1RXH1RXH J004242.5+405154  Name of catalogued detection (Note)   (meta.id;meta.main)
ErrPos 4 arcsec Total positional error (stat.error)
CRate 1.19e-02 ct/s Estimate of net count rate (phot.count;em.X-ray)
e_CRate 1.3e-03 ct/s Mean error on CRate (stat.error)
SNR 8.1  Signal-to-noise ratio (truncated at 999.9) (stat.snr)
offAxis 1 arcmin Off axis angle averaged over observation (instr.offset)
ExpTime 7992 s Exposure live time (time.duration;obs.exposure)
varFlagN   [NTP] Source variability (Note)   (meta.code;src.var)
SRCflags.....u_......   [.cdefiu_mnpavw] Source flags (Note)   (meta.code)
SEQflags......._   [.DABEFMS_+] Sequence flags (Note)   (meta.code)
ChkDate1998-08-20 "Y:M:D" Date of sequence and source checking (time.epoch)
ChkSiteSAO  Checker Site (MPE, AIP, GSFC or SAO) (meta.id;instr.obsty)
ChkNameBIK  Checker ID (obs.observer)
Comment   Source comment (meta.note)
begDate1997-08-04 "Y:M:D" Observation start date (time.epoch)
endDate1997-08-07 "Y:M:D" Observation finish date (time.epoch)
ObsIDUS600930H.N3  Observation Identification (meta.id;obs)
SiteUSRS  Processing site (MPE or USRS) (meta.id;instr.obsty)
RAJ2000010.6774 deg (i) Source Right Ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+40.8651 deg (i) Source Declination (J2000) (pos.eq.dec;meta.main)
Glon121.1525 deg Galactic Longitude (pos.galactic.lon)
Glat-21.9765 deg Galactic Latitude (pos.galactic.lat)
EPI 0.0   [0,0.5] Edge Proximity Indicator (Note)   (meta.code)
Xpos4110.3 pix Unblocked x source position (0.5arcsec/pixel) (pos.cartesian.x;instr.det)
Ypos4061.9 pix Unblocked y source position (0.5arcsec/pixel) (pos.cartesian.y;instr.det)
imXpox257.36 pix Blocked x source position (8arcsec/pixel) (pos.cartesian;instr.det)
imYpox254.34 pix Blocked y source position (8arcsec/pixel) (pos.cartesian;instr.det)
lev1_X4109.8 pix SASS level 1 x coordinate (0.5arcsec/pixel) (pos.cartesian;instr.det)
lev1_Y4130.6 pix SASS level 1 y coordinate (0.5arcsec/pixel) (pos.cartesian;instr.det)
cirRadius 20.1 arcsec Radius of source circle for source intensity measurement (phys.angSize;src)
totCounts 110 ct Total (source + background) counts within cirRadius (phot.count;em.X-ray)
e_totCounts 10 ct Mean error on totCounts (stat.error)
bkgCounts 13 ct Background counts inside cirRadius (phot.count;em.X-ray)
QE 0.973  1keV Quantum Efficiency which has been used to derive CRate (instr.det.qe)
vig 1.002  1keV vignetting correction for source which has been used to derive CRate (instr.param)
csc 1.011  1keV scattering correction for source which has been used to derive CRate (instr.param)
Xsize 72 arcsec X source detect cell size (instr.fov;instr.pixel)
Ysize 72 arcsec Y source detect cell size (instr.fov;instr.pixel)
boxCounts 156 ct Total counts in detection box (phot.count;em.X-ray)
thrCounts 79 ct Threshold for detection at this location (instr.sensitivity)
unresPr 1.00   [0,1] Probability the source is unresolved (Note)   (stat.fit.goodness)
XposEC4104.0 pix X position of extended circle (0.5arcsec/pix) (pos.cartesian.x;instr.det)
YposEC4089.0 pix Y position of extended circle (0.5arcsec/pix) (pos.cartesian.y;instr.det)
RadEC 50.9 arcsec Radius of the extended circle (phys.angSize;src)
SctEC 1.000  Extended circle scattering correction (truncated at 999.999) (instr.param)
CorEC 1.05  Extended circle size correction (truncated at 99999.99) (instr.param)
e_CorEC 0.18  Mean error on CorEC (stat.error)
  
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