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J/A+A/551/A142/1swxrt 7 year Swift-XRT point source catalog (1SWXRT) (D'Elia+, 2013)
1SWXRT catalog of the serendipitous sources detected in 7 years of Swift-XRT observations (84979 rows)
  recno=27840
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ColumnValue  Explain   (UCD)
_RAJ200018 08 39.3849 "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)
_DEJ2000-20 24 41.842 "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)
_RAB195018 05 40.7412 "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)
_DEB1950-20 25 13.180 "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)
_Glon009.9955248 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-00.2423753 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)
27840recno 27840  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

1SWXRTJ180839.3-202441  1SWXRT source name (JHHMMSS.s+DDMMSS) (meta.id;meta.main)
TargetSGR1806-20  XRT field name (obs.field)
RAJ2000272.16410 deg (i) Swift-XRT Right Ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000-20.41162 deg (i) Swift-XRT Declination (J2000) (pos.eq.dec;meta.main)
Seq00035315023  Swift-XRT observation number (meta.number)
Beg2006-06-09T03:33:05 s Start date of the field observations (time.start;obs)
End2006-06-09T21:22:57 s End date of the field observations (time.end;obs)
Fcrate 9.68e-02 ct/s 0.3-10keV count rate or 90% upper limit (red values are upper limits) (phot.count;em.X-ray)
e_Fcrate 9.99e-99 ct/s 1σ 0.3-10keV count rate error (set to -99 in case of upper limit) (stat.error)
FFlux 7.52e-12 mW/m2 0.5-10keV Flux or 90% upper limit (red values are upper limits) (phot.flux;em.X-ray)
e_FFlux 9.99e-99 mW/m2 1σ 0.5-10keV Flux error (set to -99 in case of upper limit) (stat.error)
Fprob 0.00e+00  0.3-10keV false detection probability (stat.fit.goodness)
FSNR 10.8  0.3-10keV Signal-to-noise ratio, S/N (stat.snr)
Scrate 1.88e-02 ct/s 0.3-3keV count rate or 90% upper limit (red values are upper limits) (phot.count;em.X-ray)
e_Scrate 9.99e-99 ct/s 1σ 0.3-3keV count rate error (set to -99 in case of upper limit) (stat.error)
SFlux 2.37e-13 mW/m2 0.5-2keV Flux or 90% upper limit (red values are upper limits) (phot.flux;em.X-ray)
e_SFlux 9.99e-99 mW/m2 1σ 0.5-2keV Flux error (set to -99 in case of upper limit) (stat.error)
Sprob 0.00e+00  0.3-13keV false detection probability (stat.fit.goodness)
SSNR 4.6  0.3-13keV Signal-to-noise ratio, S/N (stat.snr)
Hcrate 9.28e-02 ct/s 2-10keV count rate or 90% upper limit (red values are upper limits) (phot.count;em.X-ray)
e_Hcrate 9.99e-99 ct/s 1σ 2-10keV count rate (set to -99 in case of upper limit) (stat.error)
HFlux 8.64e-12 mW/m2 2-10keV Flux or 90% upper limit (red values are upper limits) (phot.flux;em.X-ray)
e_HFlux 9.99e-99 mW/m2 1σ 2-10keV Flux error (set to -99 in case of upper limit) (stat.error)
Hprob 0.00e+00  2-10keV false detection probability (stat.fit.goodness)
HSNR 10.6  2-10keV Signal-to-noise ratio, S/N (stat.snr)
Texp 1607.8 s Total on-time (time.expo)
HR 0.663   [-1/1] Hardness ratio (2) (Note 1)   (phot.flux;arith.ratio)
e_HR 0.067   1σ hardness ratio error (Note 3)   (stat.error)
ePos 2.8 arcsec Positional error at 68 % confidence level (stat.error;stat.fit.param;phys.atmol.level)
NH 1.69e+22 cm-2 Galactic hydrogen column density (phys.columnDensity;pos.galactic)
beta-0.914   Energy spectral index β=Γ-1 (Note 2)   (spect.index)
e_beta    Energy spectral index error (stat.error)
  
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