ACDS V10.0 - Fri May 03 09:20:26 CEST 2019
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Detailed Description of IX/43 :
1SXPS Swift X-ray telescope point source catalogue (Evans+ 2014)
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Note : this is the description file of the original catalog.
This HTML page corresponds well to the original description, but some minor
changes in the format may have been introduced in the FITS output
files in order to allow for arithmetic operations on quantities
such as coordinates and times. h:m:s and d:m:s units are normally
converted into degrees, and YYYY-MM-DD into julian days.
Similarly, some slight changes may have been introduced in the
units; the value given in the HTML files supersedes the value indicated in the ReadMe
file for this catalogue.
IX/43 1SXPS Swift X-ray telescope point source catalogue (Evans+ 2014)
================================================================================
1SXPS: A deep Swift X-ray telescope point source catalogue with light curves
and spectra
Evans P.A., Osborne J.P., Beardmore A.P., Page K.L., Willingale R.,
Mountford C.J., Pagani C., Burrows D.N., Kennea J.A., Perri M.,
Tagliaferri G., Gehrels N.
<Astrophys. J., Suppl. Ser. 210, 8 (2014)>
=2013yCat.9043....0E
=2014ApJS..210....8E
================================================================================
ADC_Keywords: X-ray sources ; Surveys
Mission_Name: Swift
Keywords: Catalogs ; Surveys ; X-rays: observations ; Methods: data analysis
Abstract:
We present the 1SXPS (Swift-XRT Point Source) catalogue of 151,524
X-ray point-sources detected by the Swift-XRT in 8 years of operation.
The catalogue covers 1905 square degrees distributed approximately
uniformly on the sky. We analyze the data in two ways. First we
consider all observations individually, for which we have a typical
sensitivity of ~3e-13 erg.cm-2s^-1` (0.3-10 keV). Then we co-add
all data covering the same location on the sky: these images have a
typical sensitivity of ~9e-14 erg cm-2s-1 (0.3-10 keV). Our sky
coverage is nearly 2.5 times that of 3XMM-DR4, although the catalog
is a factor of ~1.5 less sensitive. The median position error is 5.5"
(90% confidence), including systematics. Our source detection method
improves on that used in previous XRT catalogues and we report >68,000
new X-ray sources. The goals and observing strategy of the Swift
satellite allow us to probe source variability on multiple timescales,
and we find ~30,000 variable objects in our catalog. For every source
we give positions, fluxes, time series (in four energy bands and two
hardness ratios), estimates of the spectral properties, spectra and
spectral fits for the brightest sources, and variability probabilities
in multiple energy bands and timescales.
Description:
The 1SXPS catalogue is a point-source catalogue built from all
Swift-XRT Photon Counting mode data of at least 100-s in duration
gathered prior to 2012 October 12 (Swift was launched in 2004
November). It contains positions, fluxes, spectral details,
variability information and a flag indicating the reliability of the
detection for 151,524 objects. Various values (e.g. the count rates)
are given in 4 bands:
Total = 0.3-10 keV
Soft = 0.3-1 keV
Medium = 1-2 keV
Hard = 2-10 keV
The source detection was performed in each of these bands independently,
and the results combined to give this final catalogue.
File Summary:
FileName Lrecl Records Explanations
× 80 . This file
× ReadMe 80 . This file
× sources.dat 1522 151524 The 1SXPS Catalogue of Swift X-ray telescope
Point Sources.
× xcor.dat 110 502530 Cross-correlation of the 1SXPS sources
See also:
http://www.swift.ac.uk/1SXPS/ : 1SXPS home page
http://www.swift.ac.uk/1SXPS/docs.php : On-line Documentation
J/A+A/551/A142 : 7 year Swift-XRT point source catalog (1SWXRT) (D'Elia+ 2013)
J/A+A/528/A122 : SwiftFT catalog in deep XRT GRB fields (Puccetti+, 2011)
J/A+A/547/A57 : Swift X-ray Telescope Cluster Survey (Tundo+, 2012)
Byte-by-byte Description of file: sources.dat
Bytes Format Units Label Explanations
1- 5 A5 --- --- [1SXPS]
7- 22 A16 --- 1SXPS Unique 1SXPS ID (JHHMMSS.S+DDMMSS)
24- 32 F9.5 deg RAdeg Right Ascension (J2000)
34- 42 F9.5 deg DEdeg Declination Ascension (J2000)
44- 47 F4.1 arcsec Err90 [0.2/33] 90% radial position error, including
systematic, in arc seconds
49 I1 --- A [0/1] Provenance of source astrometry:
0=Swift star tracker, 1=XRT/2MASS astrometry
(AstromType)
51- 59 F9.5 deg Glon Galactic longitude (l)
61- 69 F9.5 deg Glat Galactic latitude (b)
71- 74 F4.1 arcmin OffAxis ?=-1 The mean off-axis angle of this source (5)
76- 82 E7.3 s t.exp Total on-source exposure time (Exposure)
84-102 A19 "datime" t.start UT Date where this source was first observed
(StartDate)
104-122 A19 "datime" t.stop UT Date where this source was last observed
(StopDate)
124-126 I3 --- Nobs Number of observations of the location of
this source (NumObs)
128-130 I3 --- Ndet Number of observations in which the source
was detected (NumDetObs)
132-133 I2 --- Det [0/18] Detection flag, 0=OK (DetFlag) (1)
135 I1 --- ff [0/2] Field flag, 0=OK (Fieldflag) (2)
137-138 I2 --- Det0 [0/18]?=-1 Total(0.3-10keV)-band detection
flag (DetFlag_band0) (1)
140-141 I2 --- Det1 [0/18]?=-1 Soft(0.3-1keV)-band detection flag
(DetFlag_band1) (1)
143-144 I2 --- Det2 [0/18]?=-1 Medium(1-2keV)-band detection flag
(DetFlag_band2) (1)
146-147 I2 --- Det3 [0/18]?=-1 Hard-(2-10keV)band detection flag
(DetFlag_band3) (1)
--------------------------------------------------------------------------------
149-156 E8.3 ct/s CR0 ? Total(0.3-10keV)-band count-rate
(Rate_band0)
158-165 E8.3 ct/s E_CR0 ? positive error on CR0 (Rateband0pos)
167-175 E9.3 ct/s e_CR0 [/0]? negative error on DR0 (Rateband0neg)
177-184 E8.3 ct/s CR1 ? Soft(0.3-1keV)-band count-rate (Rate_band1)
186-193 E8.3 ct/s E_CR1 ? positive error on CR1 (Rateband1pos)
195-203 E9.3 ct/s e_CR1 [/0]? negative error on CR1 (Rateband1neg)
205-212 E8.3 ct/s CR2 ? Medium(1-2keV)-band count-rate (Rate_band2)
214-221 E8.3 ct/s E_CR2 ? positive error on CR2 (Rateband2pos)
223-231 E9.3 ct/s e_CR2 [/0]? negative error on CR2 (Rateband2neg)
233-240 E8.3 ct/s CR3 ? Hared(2-10keV)-band count-rate (Rate_band3)
242-249 E8.3 ct/s E_CR3 ? positive error on CR3 (Rateband3pos)
251-259 E9.3 ct/s e_CR3 [/0]? negative error on CR3 (Rateband3neg)
261-266 I6 ct Ct0 ? Total(0.3-10keV)-band measured counts in the
source region (Counts_band0)
268-273 I6 ct Ct1 ? Soft(0.3-1keV)-band measured counts in the
source region (Counts_band1)
275-280 I6 ct Ct2 ? Medium(1-2keV)-band measured counts in the
source region (Counts_band2)
282-287 I6 ct Ct3 ? Hard(2-10keV)-band measured counts in the
source region (Counts_band3)
289-297 F9.2 ct bgCt0 ? Total(0.3-10keV)-band expected background
counts in the source region (BGCounts_band0)
299-307 F9.2 ct bgCt1 ? Soft(0.3-1keV)-band expected background
counts in the source region (BGCounts_band1)
309-317 F9.2 ct bgCt2 ? Medium(1-2keV)-band expected background
counts in the source region (BGCounts_band2)
319-327 F9.2 ct bgCt3 ? Hard(2-10keV)-band expected background
counts in the source region (BGCounts_band3)
329-333 F5.1 --- CF0 ? Total(0.3-10keV)-band count-rate correction
factor (CF_band0)
335-339 F5.1 --- CF1 ? Soft(0.3-1keV)-band count-rate correction
factor (CF_band1)
341-345 F5.1 --- CF2 ? Medium(1-2keV)-band count-rate correction
factor (CF_band2)
347-351 F5.1 --- CF3 ? Hard(2-10keV)-band count-rate correction
factor (CF_band3)
353-360 E8.3 --- PcstS0 [0/1]? Probability that the source is constant
between snapshots in the total band
(PvarPchiSnapshot_band0) (3)
362-369 E8.3 --- PcstS1 [0/1]? Probability that the source is constant
between snapshots in the soft band
(PvarPchiSnapshot_band1) (3)
371-378 E8.3 --- PcstS2 [0/1]? Probability that the source is constant
between snapshots in the medium band
(PvarPchiSnapshot_band2) (3)
380-387 E8.3 --- PcstS3 [0/1]? Probability that the source is constant
between snapshots in the hard band
(PvarPchiSnapshot_band3) (3)
389-396 E8.3 --- Pcst0 [0/1]? Probability that the source is constant
between observations in the total band
(PvarPchiObsID_band0) (3)
398-405 E8.3 --- Pcst1 [0/1]? Probability that the source is constant
between observations in the soft band
(PvarPchiObsID_band1) (3)
407-414 E8.3 --- Pcst2 [0/1]? Probability that the source is constant
between observations in the medium band
(PvarPchiObsID_band2) (3)
416-423 E8.3 --- Pcst3 [0/1]? Probability that the source is constant
between observations in the hard band
(PvarPchiObsID_band3) (3)
425-430 F6.3 --- HR1 [-1/1]? Hardness Ratio 1 [(M-S)/(M+S)]
432-437 F6.3 --- E_HR1 [/]? positive error on HR1 (HR1_pos) (6)
439-444 F6.3 --- e_HR1 [/]? negative error on HR1 (HR1_neg) (6)
446-451 F6.3 --- HR2 [-1/1]? Hardness Ratio 2 [(H-M)/(H+M)]
453-458 F6.3 --- E_HR2 [/]? positive error on HR2 (HR2_pos) (6)
460-465 F6.3 --- e_HR2 [/]? negative error on HR2 (HR2_neg) (6)
467-474 E8.3 cm-2 NHg Galactic absorption column in the direction
of the source (GalNH)
476 I1 --- M1 [0/2] Method of estimating the power-law
spectral properties (whichPow) (4)
478 I1 --- M2 [0/2] Method of estimating the APEC spectral
properties (whichAPEC) (4)
--------------------------------------------------------------------------------
480-488 E9.3 mJ/m2/ct CFO1 Summary count-to-observed-flux conversion factor
assuming a power-law spectrum (PowECFO)
490-498 E9.3 mJ/m2/ct CFU1 Summary count-to-unabsorbed-flux factor assuming
a power-law spectrum (PowECFU)
500-507 E8.3 mJ/m2/s Gam Summary observed 0.3-10 keV flux assuming a
power-law spectrum (PowFlux)
509-516 E8.3 mJ/m2/s E_Gam Positive error on Gam (PowFlux_pos)
518-526 E9.3 mJ/m2/s e_Gam [/0] Negative error on Gam (PowFlux_neg)
528-536 E9.3 mW/m2 FpO1 Peak observed 0.3-10 keV flux assuming a
power-law spectrum (PowPeakFlux)
538-546 E9.3 mW/m2 E_FpO1 Positive error FpO1 (PowPeakFlux_pos)
548-556 E9.3 mW/m2 e_FpO1 [/0] Negative error on FpO1 (PowPeakFlux_neg)
558-566 E9.3 mW/m2 FPU1 Summary unabsorbed 0.3-10 keV flux assuming a
power-law spectrum (PowUnabsFlux)
568-576 E9.3 mW/m2 E_FPU1 [/] Positive error on FPU1 (PowUnabsFlux_pos)(7)
578-586 E9.3 mW/m2 e_FPU1 [/] Negative error on FPU1 (PowUnabsFlux_neg)(7)
588-596 E9.3 mW/m2 FpU1 Peak unabsorbed 0.3-10 keV flux assuming a
power-law spectrum (PowPeakUnabsFlux)
598-606 E9.3 mW/m2 E_FpU1 [/] Positive error on FpU1
(PowPeakUnabsFlux_pos) (7)
608-616 E9.3 mW/m2 e_FpU1 [/] Negative error on FpU1
(PowPeakUnabsFlux_neg) (7)
618-626 E9.3 mJ/m2/ct CFO2 Summary count-to-observed-flux conversion
factor assuming a APEC spectrum (APECECFO)
628-636 E9.3 mJ/m2/ct CFU2 Summary count-to-unabsorbed-flux
factor assuming a APEC spectrum (APECECFU)
638-646 E9.3 mW/m2 FlO2 Summary observed 0.3-10 keV flux assuming a
APEC spectrum (APECFlux)
648-656 E9.3 mW/m2 E_FlO2 Positive error on FlO2 (APECFlux_pos)
658-666 E9.3 mW/m2 e_FlO2 [/0]?=1 Negative error on FlO2
(APECFlux_neg) (7)
668-676 E9.3 mW/m2 FpU2 Peak observed 0.3-10 keV flux assuming a APEC
spectrum (APECPeakFlux)
678-686 E9.3 mW/m2 E_FpU2 Positive error on FpU2 (APECPeakFlux_pos)
688-696 E9.3 mW/m2 e_FpU2 [/0] Negative error on FpU2 (APECPeakFlux_neg)
698-706 E9.3 mW/m2 FUO2 Summary unabsorbed 0.3-10 keV flux assuming a
APEC spectrum (APECUnabsFlux)
708-716 E9.3 mW/m2 E_FUO2 [/] Positive error on FUO2
(APECUnabsFlux_pos) (7)
718-726 E9.3 mW/m2 e_FUO2 [/] Negative error on FUO2
(APECUnabsFlux_neg) (7)
728-736 E9.3 mW/m2 FA2 Unabsorbed 0.3-10 keV flux assuming a APEC
spectrum (APECPeakUnabsFlux)
738-746 E9.3 mW/m2 E_FA2 [/] Positive error on FA2
(APECPeakUnabsFlux_pos) (7)
748-756 E9.3 mW/m2 e_FA2 [/] Negative error on FA2
(APECPeakUnabsFlux_neg) (7)
--------------------------------------------------------------------------------
758-766 E9.3 mJ/m2/ct CCFO1 Count-rate-to-observed-flux conversion factor
assuming a fixed power-law spectrum
(FixedPowECFO)
768-776 E9.3 mJ/m2/ct CCFU1 Count-rate-to-unabsorbed-flux factor assuming a
fixed power-law spectrum (FixedPowECFU)
778-786 E9.3 mW/m2 FO1 Observed 0.3-10 keV flux assuming a fixed
power-law spectrum (FixedPowFlux)
788-796 E9.3 mW/m2 E_FO1 Positive error on FO1 (FixedPowFlux_pos)
798-806 E9.3 mW/m2 e_FO1 [/0] Negative error on FO1 (FixedPowFlux_neg)
808-816 E9.3 mW/m2 FU1 Unabsorbed 0.3-10 keV flux assuming a fixed
power-law spectrum (FixedPowUnabsFlux)
818-826 E9.3 mW/m2 E_FU1 Positive error on FU1
(FixedPowUnabsFlux_pos)
828-836 E9.3 mW/m2 e_FU1 [/0] Negative error on FU1
(FixedPowUnabsFlux_neg)
838-846 E9.3 mJ/m2/ct CCFO2 Count-rate-to-observed-flux conversion factor
assuming a fixed APEC spectrum (FixedAPECECFO)
848-856 E9.3 mJ/m2/ct CCFU2 Count-rate-to-unabsorbed-flux factor assuming a
fixed APEC spectrum (FixedAPECECFU)
858-866 E9.3 mW/m2 FO2 Observed 0.3-10 keV flux assuming a fixed APEC
spectrum (FixedAPECFlux)
868-876 E9.3 mW/m2 E_FO2 Positive error on FO2 (FixedAPECFlux_pos)
878-886 E9.3 mW/m2 e_FO2 [/0] Negative error on FO2 (FixedAPECFlux_neg)
888-896 E9.3 mW/m2 FU2 Unabsorbed 0.3-10 keV flux assuming a fixed APEC
spectrum (FixedAPECUnabsFlux)
898-906 E9.3 mW/m2 E_FU2 Positive error on FU2 (FixedAPECUnabsFlux_pos)
908-916 E9.3 mW/m2 e_FU2 [/0] Negative error on FU2
(FixedAPECUnabsFlux_neg)
918-926 E9.3 mJ/m2/ct CFO1H ? Count-rate-to-observed-flux conversion factor
derived from the hardness ratios assuming a
power-law spectrum (InterpPowECFO)
928-936 E9.3 mJ/m2/ct CFU1H ? Count-rate-to-unabsorbed-flux factor derived
from the hardness ratios assuming a power-law
spectrum (InterpPowECFU)
938-946 E9.3 mW/m2 FO1H ? Observed 0.3-10 keV flux derived from
the hardness ratios assuming a power-law
spectrum (InterpPowFlux)
948-956 E9.3 mW/m2 E_FO1H ? Positive error on FO1H (InterpPowFlux_pos)
958-966 E9.3 mW/m2 e_FO1H [/0]? Negative error on FO1H (InterpPowFlux_neg)
968-976 E9.3 mW/m2 FU1H ? Unabsorbed 0.3-10 keV flux derived from the
hardness ratios assuming a power-law spectrum
(InterpPowUnabsFlux)
978-986 E9.3 mW/m2 E_FU1H [/]? Positive error on FU1H
(InterpPowUnabsFlux_pos) (7)
988-996 E9.3 mW/m2 e_FU1H [/]? Negative error on FU1H
(InterpPowUnabsFlux_neg) (7)
998-1006 E9.3 cm-2 NH1H ? Absorption column derived from the hardness
ratios assuming a power-law spectrum
(InterpPowNH)
1008-1016 E9.3 cm-2 E_NH1H [-1/]? Positive error on NH1H
(InterpPowNH_pos) (7)
1018-1026 E9.3 cm-2 e_NH1H [/1]? Negative error on NH1H
(InterpPowNH_neg) (7)
1028-1032 F5.2 --- Gam1 ? Photon index derived from the hardness ratios
assuming a power-law spectrum (InterpPowGamma)
1034-1038 F5.2 --- E_Gam1 [-1/]? Positive error on Gam1
(InterpPowGamma_pos) (7)
1040-1044 F5.2 --- e_Gam1 [/1]? Negative error on Gam1
(InterpPowGamma_neg) (7)
1046-1054 E9.3 mJ/m2/ct CFO2H ? Count-rate-to-observed-flux conversion factor
derived from the hardness ratios assuming a
APEC spectrum (InterpAPECECFO)
1056-1064 E9.3 mJ/m2/ct CFU2H ? Count-rate-to-unabsorbed-flux factor
derived from the hardness ratios assuming a
APEC spectrum (InterpAPECECFU)
1066-1074 E9.3 mW/m2 FU2HO ? Observed 0.3-10 keV flux derived from the
hardness ratios assuming a APEC spectrum
(InterpAPECFlux)
1076-1084 E9.3 mW/m2 E_FU2HO ? Positive error on FU2HO (InterpAPECFlux_pos)
1086-1094 E9.3 mW/m2 e_FU2HO [/0]? Negative error on FU2HO
(InterpAPECFlux_neg)
1096-1104 E9.3 mW/m2 FU2HU ? Unabsorbed 0.3-10 keV flux derived from the
hardness ratios assuming a APEC spectrum
(InterpAPECUnabsFlux)
1106-1114 E9.3 mW/m2 E_FU2HU [/]? Positive error on FU2HU
(InterpAPECUnabsFlux_pos) (7)
1116-1124 E9.3 mW/m2 e_FU2HU [/]? Negative error on FU2HU
(InterpAPECUnabsFlux_neg) (7)
1126-1134 E9.3 cm-2 NH2H [/]? Absorption column derived from the hardness
ratios assuming a APEC spectrum (InterpAPECNH)
1136-1144 E9.3 cm-2 E_NH2H [/]? Positive error on NH2H
(InterpAPECNH_pos) (7)
1146-1154 E9.3 cm-2 e_NH2H [/]? Negative error on NH2H
(InterpAPECNH_neg) (7)
1156-1160 F5.2 keV kT2H ? Photon index derived from the hardness ratios
assuming a APEC spectrum (InterpAPECkT)
1162-1166 F5.2 keV E_kT2H [/]? Positive error on kT2H
(InterpAPECkT_pos) (7)
1168-1173 F6.2 keV e_kT2H [/]? Negative error on kT2H
(InterpAPECkT_neg) (7)
1175-1179 F5.2 --- P1 [0/1] The probability that the HR values of this
source could be obtained if the true spectrum
is an absorbed power-law (P_pow)
1181-1185 F5.2 --- P2 [0/1] The probability that the HR values of this
source could be obtained if the true spectrum
is an absorbed APEC (P_APEC)
1187-1195 E9.3 mJ/m2/ct CF1OS ? Count-rate-to-observed-flux conversion
factor from a power-law spectral fit
(FittedPowECFO)
1197-1205 E9.3 mJ/m2/ct CF1US ? Count-rate-to-unabsorbed-flux factor from a
power-law spectral fit (FittedPowECFU)
1207-1215 E9.3 mW/m2 FO1S ? Observed 0.3-10 keV flux from a power-law
spectral fit (FittedPowFlux)
1217-1225 E9.3 mW/m2 E_FO1S ? Positive error on FO1S (FittedPowFlux_pos)
1227-1235 E9.3 mW/m2 e_FO1S [/0]? Negative error on FO1S (FittedPowFlux_neg)
1237-1245 E9.3 mW/m2 FU1S ? Unabsorbed 0.3-10 keV flux from a power-law
spectral fit (FittedPowUnabsFlux)
1247-1255 E9.3 mW/m2 E_FU1S [/]? Positive error on FU1S
(FittedPowUnabsFlux_pos) (7)
1257-1265 E9.3 mW/m2 e_FU1S [/]? Negative error on FU1S
(FittedPowUnabsFlux_neg) (7)
1267-1275 E9.3 cm-2 NH1S ? Absorption column from a power-law spectral
fit (FittedPowNH)
1277-1285 E9.3 cm-2 E_NH1S ? Positive error on NH1S (FittedPowNH_pos)
1287-1295 E9.3 cm-2 e_NH1S [/]? Negative error on NH1S (FittedPowNH_neg)(7)
1297-1302 F6.3 --- Gamma ? Photon index from a power-law spectral fit
(FittedPowGamma)
1304-1310 F7.3 --- E_Gamma [/]? Positive error on Gamma
(FittedPowGamma_pos) (7)
1312-1319 F8.3 --- e_Gamma [/]? Negative error on Gamma
(FittedPowGamma_neg) (7)
1321-1326 F6.1 --- chi1 ? Churazov-weighted chi-squared for the
power-law spectral fit (FittedPowChi)
1328-1330 I3 --- df1 ? Degrees of freedom in the power-law spectral
fit (FittedPowDOF)
1332-1337 F6.1 --- chi1r ? Churazov-weighted reduced chi-squared for the
power-law spectral fit (FittedPowRedChi)
1339-1347 E9.3 mJ/m2/ct CF2OS ? Count-rate-to-observed-flux conversion factor
from a APEC spectral fit (FittedAPECECFO)
1349-1357 E9.3 mJ/m2/ct CF2US ? Count-rate-to-unabsorbed-flux factor from
a APEC spectral fit (FittedAPECECFU)
1359-1367 E9.3 mW/m2 FO2S ? Observed 0.3-10 keV flux from a APEC spectral
fit (FittedAPECFlux)
1369-1377 E9.3 mW/m2 E_FO2S ? Positive error on FO2S (FittedAPECFlux_pos)
1379-1387 E9.3 mW/m2 e_FO2S [/]? Negative error on FO2S (FittedAPECFlux_neg)
1389-1397 E9.3 mW/m2 FU2S ? Unabsorbed 0.3-10 keV flux from a APEC
spectral fit (FittedAPECUnabsFlux)
1399-1407 E9.3 mW/m2 E_FU2S [/]? Positive error on FU2S
(FittedAPECUnabsFlux_pos) (7)
1409-1417 E9.3 mW/m2 e_FU2S [/]? Negative error on FU2S
(FittedAPECUnabsFlux_neg) (7)
1419-1427 E9.3 cm-2 NH2S ? Absorption column from a APEC spectral fit
(FittedAPECNH)
1429-1437 E9.3 cm-2 E_NH2S [/]? Positive error on NH2S
(FittedAPECNH_pos) (7)
1439-1447 E9.3 cm-2 e_NH2S [/]? Negative error on NH2S
(FittedAPECNH_neg) (7)
1449-1455 F7.3 keV Gam2S ? Photon index from a APEC spectral fit
(FittedAPECkT)
1457-1463 F7.3 keV E_Gam2S [/]? Positive error on Gam2S
(FittedAPECkT_pos) (7)
1465-1471 F7.3 keV e_Gam2S [/0]? Negative error on Gam2S
(FittedAPECkT_neg) (7)
1473-1481 F9.1 --- chi2 ? Churazov-weighted chi-squared for the APEC
spectral fit (FittedAPECChi)
1483-1485 I3 --- df2 ? Degrees of freedom in the APEC spectral fit
(FittedAPECDOF)
1487-1492 F6.1 --- chi2r ? Churazov-weighted reduced chi-squared for the
APEC spectral fit (FittedAPECRedChi)
--------------------------------------------------------------------------------
1494-1496 I3 --- Nxm [0/669] Number of matches in the external
catalogue cross-correlation (Numxcorr)
1498-1500 I3 --- Nxm1 [0/655] Number of matches in the external
catalogue cross-correlation, excluding the
2MASS and USNO-B1 catalogues (Numxcorr_slim)
1502 I1 --- HRI [0/1] Whether this object matches (1) a
ROSAT HRI position (IX/28) (isROSHRI)
1504 I1 --- PSPC [0/1] Whether this object matches (1) a
ROSAT PSPC position (IX/30) (isROSPSPC)
1506 I1 --- 3X [0/1] Whether this object matches (1) a
3XMM-DR4 position (IX/44) (is3XMM)
1508 I1 --- XMMSL1 [0/1] Whether this object matches (1) a
XMM Slew survey (XMMSL1, J/A+A/480/611)
position (isXMMSL1)
1510 I1 --- Sw [0/1] Whether this object matches (1) a SwiftFT
position (J/A+A/528/A122) (isSwiftFT)
1512 I1 --- 1SW [0/1] Whether this object matches (1) a 1SWXRT
position (J/A+A/551/A142) (is1SWXRT)
1514 I1 --- GRB [0/1] Whether this object matches (1) a XRT GRB
position (J/MNRAS/397/1177) (isXRTGRB)
1516 I1 --- Q [0/1] Whether this object matches (1) a SDSS-QSO
position (VII/269) (isSDSSQSO)
1518 I1 --- 2M [0/1] Whether this object matches (1) a 2MASS
position (II/246) (is2MASS)
1520 I1 --- B1 [0/1] Whether this object matches (1) a USNO-B1
position (I/284) (isUSNOB1)
1522 I1 --- Sim [0/1] Whether this object matches (1) a SIMBAD
position (isSIMBAD)
Note (1): Detections flags are:
0 = good
1 = reasonable
2 = poor
+8 = good(8), reasonable(9), poor(10) in a region marked as
containing artifacts
+16 = good(8), reasonable(9), poor(10) in a region marked as
containing diffuse emission
Note (2): Field flag takes the values:
0 = OK
1 = has artifacts
2 = has diffuse emission
Note (3): according to the Pearson's {chi}-square test
Note (4): provenance of the summary spectral fit:
0 = fixed spectrum
1 = HR-derived
2 = fitted spectrum
Note (5): a value of -1 indicates indicates that the source was never in the
field of view, i.e. was detected and localized via the PSF wings.
Note (6): In a small number of cases where the Bayesian approach was used
to derive the parameter, the mean value lay outside the 1-{sigma}
confidence interval. In these cases the positive error may be
negative, and the negative error may be positive.
Note (7): a value of -1 for positive error or +1 for negative error means
that the error was unconstrained.
Byte-by-byte Description of file: xcor.dat
Bytes Format Units Label Explanations
1- 5 A5 --- --- [1SXPS]
7- 22 A16 --- 1SXPS Unique 1SXPS ID (JHHMMSS.S+DDMMSS)
24- 68 A45 --- Name Designation of the source in the external
catalog (ExtCat_ID)
70- 77 A8 --- Cat Catalog containing the matched source (Catalog)
79- 84 F6.1 arcsec r [0/1081] distance between the 1SXPS source
and external catalog source (Distance)
86- 94 F9.5 deg RAdeg J2000 right ascension of the source
in the external catalog (RA)
96-104 F9.5 deg DEdeg J2000 declination of the source in the external
catalog (Decl)
106-110 F5.1 arcsec Err90 [0/680]? 90% confidence radial uncertainty in
the external catalog position, including any
systematic error.
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(End) Phil A. Evans [Leicester], Francois Ochsenbein [CDS] 21-Nov-2013