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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=77140
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Note: The ``short'' version of the catalogue can be retrieved by a selecting     *+*     in the SEQflags column

ColumnValue  Explain   (UCD)
_RAJ200016 08 04.536 "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+17 02 50.28 "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)
_RAB195016 05 48.866 "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+17 10 44.69 "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)
_Glon031.017045 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+43.639481 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)
77140recno 77140  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SeqDetec1rh201699n00.011  Sequence Detection Name. (Note)   (meta.id;obs)
n_1RXH 4   Number of sources sharing a common 1RXH name (Note)   (meta.note)
1RXH1RXH J160804.5+170250  Name of catalogued detection (Note)   (meta.id;meta.main)
ErrPos 3 arcsec Total positional error (stat.error)
CRate 8.60e-02 ct/s Estimate of net count rate (phot.count;em.X-ray)
e_CRate 4.6e-03 ct/s Mean error on CRate (stat.error)
SNR 18.3  Signal-to-noise ratio (truncated at 999.9) (stat.snr)
offAxis 1 arcmin Off axis angle averaged over observation (instr.offset)
ExpTime 4165 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)
ChkDate1996-07-17 "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)
begDate1994-08-11 "Y:M:D" Observation start date (time.epoch)
endDate1994-08-12 "Y:M:D" Observation finish date (time.epoch)
ObsIDWG201699H.N1  Observation Identification (meta.id;obs)
SiteMPE  Processing site (MPE or USRS) (meta.id;instr.obsty)
RAJ2000242.0189 deg (i) Source Right Ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+17.0473 deg (i) Source Declination (J2000) (pos.eq.dec;meta.main)
Glon 31.0171 deg Galactic Longitude (pos.galactic.lon)
Glat 43.6394 deg Galactic Latitude (pos.galactic.lat)
EPI 0.0   [0,0.5] Edge Proximity Indicator (Note)   (meta.code)
Xpos4102.8 pix Unblocked x source position (0.5arcsec/pixel) (pos.cartesian.x;instr.det)
Ypos4078.7 pix Unblocked y source position (0.5arcsec/pixel) (pos.cartesian.y;instr.det)
imXpox256.89 pix Blocked x source position (8arcsec/pixel) (pos.cartesian;instr.det)
imYpox255.39 pix Blocked y source position (8arcsec/pixel) (pos.cartesian;instr.det)
lev1_X4102.3 pix SASS level 1 x coordinate (0.5arcsec/pixel) (pos.cartesian;instr.det)
lev1_Y4113.8 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 370 ct Total (source + background) counts within cirRadius (phot.count;em.X-ray)
e_totCounts 19 ct Mean error on totCounts (stat.error)
bkgCounts 7 ct Background counts inside cirRadius (phot.count;em.X-ray)
QE 0.974  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)
Xsize120 arcsec X source detect cell size (instr.fov;instr.pixel)
Ysize120 arcsec Y source detect cell size (instr.fov;instr.pixel)
boxCounts 480 ct Total counts in detection box (phot.count;em.X-ray)
thrCounts 106 ct Threshold for detection at this location (instr.sensitivity)
unresPr 1.00   [0,1] Probability the source is unresolved (Note)   (stat.fit.goodness)
XposEC4080.0 pix X position of extended circle (0.5arcsec/pix) (pos.cartesian.x;instr.det)
YposEC4073.0 pix Y position of extended circle (0.5arcsec/pix) (pos.cartesian.y;instr.det)
RadEC 100.0 arcsec Radius of the extended circle (phys.angSize;src)
SctEC 1.000  Extended circle scattering correction (truncated at 999.999) (instr.param)
CorEC 1.12  Extended circle size correction (truncated at 99999.99) (instr.param)
e_CorEC 0.09  Mean error on CorEC (stat.error)
  
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