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VizieR

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J/ApJS/224/40/counts Catalog of Chandra ACIS point like sources (Wang+, 2016)
Detected X-ray point sources in the Chandra ACIS survey and counts in different bands (tables 3 and 4) (766496 rows)
  recno=16572
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ColumnValue  Explain   (UCD)
_RAJ200000 42 42.5304 "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 52.524 "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 58.4439 "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 26.947 "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)
_Glon121.1523805 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-21.9769956 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)
16572recno 16572  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Group 1   [1/4953] Group Number (meta.id)
CXOGSGJ004241.7+405157  Source name (JHHMMSS.s+DDMMSS) (linked to average properties for this source (table 5)) (meta.id;meta.main)
Det2050.s2.6  Source name in individual observations (Note G1)   (meta.id;obs)
Split 0.44   Split fraction (Note G2)   (stat.fit.param)
Exp 13206.0 s [58/192363] Source exposure time after deadtime correction (time.duration;obs.exposure)
MJD51976.601 d Modified Julian Date for the beginning point of the observation (time.epoch)
Dedge 38 pix Distance from the source center to the nearest chip edge. (pos.angDistance)
OAA 646 arcsec Off-axis angle, arcseconds (instr.offset)
VigF 0.482   [0.001/1.3] Vignetting factor (Note 3)   (stat.fit.omc)
e_RAJ2000 0.21 arcsec [0/87] Statistical positional error, Right Ascension (stat.error;pos.eq.ra)
e_DEJ2000 0.19 arcsec [0/3] Statistical positional error, Declination (stat.error;pos.eq.dec)
PosErr 1.10 arcsec [1/36] Source positional uncertainties (Note 4)   (pos)
sig 34.7   [-354/1997] Detection significance (Note 5)   (stat.likelihood;obs)
Cts 598.0 ct [0.1/136000] Background-subtracted photon counts (Note 6)   (phot.count;em.X-ray)
e_Cts 29.3 ct [1/3306] Uncertainty in Cts (stat.error)
bkgd 14.2 ct Background counts within the source region (instr.background;obs.field)
CMS 0.30   [-742/241] X-ray color CMS=(M-S)/(H+M+S) (Note 7)   (phot.count;arith.ratio)
e_CMS 0.06   [0/1] Uncertainty in CMS (stat.error)
CHM -0.24   [-7911/269] X-ray color CHM=(H-M)/(H+M+S) (Note 7)   (phot.count;arith.ratio)
e_CHM 0.06   [0/1] Uncertainty in CHM (stat.error)
FX 1.35e-12  Source flux (Note 8)   (phot.flux;em.X-ray)
PK-S 0.39  K-S probability that a source is constant during an observation (stat.fit.goodness;src.var)
SQHhard  Phase classification for the source (Note 9)   (src.class)
sig/PFFT8.1/1056.0  Period significance and the most possible period (in second) from FFT algorithm (stat.fit.goodness)
Nae    [2/13] Number of possible afterglow events for sources with total events less than 100 (meta.number)
RAJ2000010.67721 deg (i) Right Ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
DEJ2000+40.86459 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
Ct(0.1-1.1) 224.58 ct Source net counts, 0.1-1.1 keV (Note 3)   (phot.count;em.X-ray)
e_Ct(0.1-1.1) 16.21 ct Uncertainty in Ct(0.1-1.1) (Note 3)   (stat.error)
Ct(0.3-1.1) 225.25 ct Source net counts, 0.3-1.1 keV (Note 3)   (phot.count;em.X-ray)
e_Ct(0.3-1.1) 16.20 ct Uncertainty in Ct(0.3-1.1) (Note 3)   (stat.error)
Ct(0.3-1) 172.92 ct Source net counts, 0.3-1 keV (Note 3)   (phot.count;em.X-ray)
e_Ct(0.3-1) 14.35 ct Uncertainty in Ct(0.3-1) (Note 3)   (stat.error)
Ct(0.1-0.5) 11.00 ct Source net counts, 0.1-0.5keV (Note 3)   (phot.count;em.X-ray)
e_Ct(0.1-0.5) 4.73 ct Uncertainty in Ct(0.1-0.5) (Note 3)   (stat.error)
Ct(0.3-0.5) 11.67 ct [-265/11865] Source net counts, 0.3-0.5keV (Note 3)   (phot.count;em.X-ray)
e_Ct(0.3-0.5) 4.72 ct [1/113] Uncertainty in Ct(0.3-0.5) (Note 3)   (stat.error)
Ct(0.1-0.8) 80.33 ct Source net counts, 0.1-0.8 keV (Note 3)   (phot.count;em.X-ray)
e_Ct(0.1-0.8) 10.22 ct Uncertainty in Ct(0.1-0.8) (Note 3)   (stat.error)
Ct(0.3-0.8) 81.00 ct Source net counts, 0.3-0.8 keV (Note 3)   (phot.count;em.X-ray)
e_Ct(0.3-0.8) 10.22 ct Uncertainty in Ct(0.3-0.8) (Note 3)   (stat.error)
Ct(1-2) 420.58 ct Source net counts, 1-2 keV (Note 3)   (phot.count;em.X-ray)
e_Ct(1-2) 21.62 ct Uncertainty in Ct(1-2) (Note 3)   (stat.error)
Ct(1.1-2) 368.25 ct Source net counts, 1.1-2 keV (Note 3)   (phot.count;em.X-ray)
e_Ct(1.1-2) 20.29 ct Uncertainty in Ct(1.1-2) (Note 3)   (stat.error)
Ct(0.5-2.4) 626.33 ct Source net counts, 0.5-2.4 keV (Note 3)   (phot.count;em.X-ray)
e_Ct(0.5-2.4) 26.19 ct Uncertainty in Ct(0.5-2.4) (Note 3)   (stat.error)
Ct(0.5-2) 581.83 ct Source net counts, 0.5-2 keV (Note 3)   (phot.count;em.X-ray)
e_Ct(0.5-2) 25.27 ct Uncertainty in Ct(0.5-2) (Note 3)   (stat.error)
Ct(0.8-2) 512.50 ct Source net counts, 0.8-2 keV (Note 3)   (phot.count;em.X-ray)
e_Ct(0.8-2) 23.76 ct Uncertainty in Ct(0.8-2) (Note 3)   (stat.error)
Ct(2-8) 222.83 ct Source net counts, 2-8 keV (Note 3)   (phot.count;em.X-ray)
e_Ct(2-8) 16.17 ct Uncertainty in Ct(2-8) (Note 3)   (stat.error)
Ct(0.1-8) 815.67 ct Source net counts, 0.1-8 keV (Note 3)   (phot.count;em.X-ray)
e_Ct(0.1-8) 29.84 ct Uncertainty in Ct(0.1-8) (Note 3)   (stat.error)
Ct(0.3-8) 816.33 ct Source net counts, 0.3-8 keV (Note 3)   (phot.count;em.X-ray)
e_Ct(0.3-8) 29.84 ct Uncertainty in Ct(0.3-8) (Note 3)   (stat.error)
  
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