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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=2445
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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 42.768 "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 51.48 "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 58.681 "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 25.91 "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)
_Glon121.153176 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-21.977313 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)
2445recno 2445  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SeqDetec1rh600600n00.020  Sequence Detection Name. (Note)   (meta.id;obs)
n_1RXH 2   Number of sources sharing a common 1RXH name (Note)   (meta.note)
1RXH1RXH J004242.7+405151  Name of catalogued detection (Note)   (meta.id;meta.main)
ErrPos 1 arcsec Total positional error (stat.error)
CRate 1.19e-02 ct/s Estimate of net count rate (phot.count;em.X-ray)
e_CRate 1.0e-03 ct/s Mean error on CRate (stat.error)
SNR 11.9  Signal-to-noise ratio (truncated at 999.9) (stat.snr)
offAxis 2 arcmin Off axis angle averaged over observation (instr.offset)
ExpTime 12533 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)
ChkDate1996-07-11 "Y:M:D" Date of sequence and source checking (time.epoch)
ChkSiteAIP  Checker Site (MPE, AIP, GSFC or SAO) (meta.id;instr.obsty)
ChkNameNJN  Checker ID (obs.observer)
Comment   Source comment (meta.note)
begDate1994-07-19 "Y:M:D" Observation start date (time.epoch)
endDate1994-07-26 "Y:M:D" Observation finish date (time.epoch)
ObsIDWG600600H.N1  Observation Identification (meta.id;obs)
SiteMPE  Processing site (MPE or USRS) (meta.id;instr.obsty)
RAJ2000010.6782 deg (i) Source Right Ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+40.8643 deg (i) Source Declination (J2000) (pos.eq.dec;meta.main)
Glon121.1532 deg Galactic Longitude (pos.galactic.lon)
Glat-21.9774 deg Galactic Latitude (pos.galactic.lat)
EPI 0.0   [0,0.5] Edge Proximity Indicator (Note)   (meta.code)
Xpos4051.3 pix Unblocked x source position (0.5arcsec/pixel) (pos.cartesian.x;instr.det)
Ypos4055.7 pix Unblocked y source position (0.5arcsec/pixel) (pos.cartesian.y;instr.det)
imXpox253.67 pix Blocked x source position (8arcsec/pixel) (pos.cartesian;instr.det)
imYpox253.95 pix Blocked y source position (8arcsec/pixel) (pos.cartesian;instr.det)
lev1_X4050.8 pix SASS level 1 x coordinate (0.5arcsec/pixel) (pos.cartesian;instr.det)
lev1_Y4136.8 pix SASS level 1 y coordinate (0.5arcsec/pixel) (pos.cartesian;instr.det)
cirRadius 20.2 arcsec Radius of source circle for source intensity measurement (phys.angSize;src)
totCounts 171 ct Total (source + background) counts within cirRadius (phot.count;em.X-ray)
e_totCounts 13 ct Mean error on totCounts (stat.error)
bkgCounts 20 ct Background counts inside cirRadius (phot.count;em.X-ray)
QE 0.972  1keV Quantum Efficiency which has been used to derive CRate (instr.det.qe)
vig 1.004  1keV vignetting correction for source which has been used to derive CRate (instr.param)
csc 1.012  1keV scattering correction for source which has been used to derive CRate (instr.param)
Xsize 24 arcsec X source detect cell size (instr.fov;instr.pixel)
Ysize 24 arcsec Y source detect cell size (instr.fov;instr.pixel)
boxCounts 160 ct Total counts in detection box (phot.count;em.X-ray)
thrCounts 23 ct Threshold for detection at this location (instr.sensitivity)
unresPr 1.00   [0,1] Probability the source is unresolved (Note)   (stat.fit.goodness)
XposEC4054.3 pix X position of extended circle (0.5arcsec/pix) (pos.cartesian.x;instr.det)
YposEC4050.3 pix Y position of extended circle (0.5arcsec/pix) (pos.cartesian.y;instr.det)
RadEC 25.6 arcsec Radius of the extended circle (phys.angSize;src)
SctEC 1.001  Extended circle scattering correction (truncated at 999.999) (instr.param)
CorEC 1.00  Extended circle size correction (truncated at 99999.99) (instr.param)
e_CorEC 0.12  Mean error on CorEC (stat.error)
  
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