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VizieR

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J/ApJS/224/40/table5 Catalog of Chandra ACIS point like sources (Wang+, 2016)
Independent X-ray sources and their average properties in multiple observations (218789 rows)
  recno=497
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ColumnValue  Explain   (UCD)
_RAJ200000 42 42.500 "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 52.00 "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 58.414 "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 26.42 "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)
_Glon121.152271 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-21.977138 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)
497recno 497  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Group 1   [1/4953] Group Number (meta.id)
CXOGSGJ004242.5+405152  (i) Source name (JHHMMSS.s+DDMMSS) (meta.id;meta.main)

Nobs 11  Number of observations for this source (meta.number)

f_CXOGSG*   [*] Projected overlapping galaxies flag (Note 1)   (meta.code)
ePos 1.00 arcsec [1/36] Statistical positional error after Kim et al. (2007, J/ApJS/169/401) (stat.error)
GNameNGC221-X1  Galaxy source names numbered sequentially based on maximum detection significance (meta.id)
Sep 0.128 arcmin [0.002/641] Galaxy source nuclear separation (pos.angDistance)
SepR 0.04   [0/3] Galaxy source nuclear separation in units of the galaxy's elliptical radius (pos.angDistance)
Dist 0.8100 Mpc [-0.2/303.5] Distance in Mpc for the X-ray source (pos.distance;pos.heliocentric)
O/D11/11  Observed/Detected statistics (src.var.index)
Lum 3.09e+38 10-7W Maximum luminosity among detections, erg/s (phys.luminosity)
Flux1.71e-12 mW/m2 Average flux among detections, erg/cm2/s (phot.flux;em.X-ray)
Fmax/Fmin 3.7   [1/303734] Fmax/Fmin ratio (Note 2)   (phot.flux;arith.ratio)
E_Fmax/Fmin 0.3600   [0.009/5200] Upper uncertainty on Fmax/Fmin (stat.error;stat.max)
e_Fmax/Fmin 0.3300   Lower uncertainty on Fmax/Fmin (stat.error)
Sig 864.352   [0.01/1997] Maximum detection significance (stat.fit.goodness;instr.saturation;stat.max)
MaxCts 13205.879 ct [0.05/136146] Maximum photon counts among the detections (phot.count;em.X-ray)
Phasesh11  Statistics for SSS/QSS/hard/dim phases (Note 3)   (meta.note)
VarKSv:1  Statistics for variability during individual observations using the K-S criterion (Note 4)   (meta.note)
Class   Source identification (Note 5)   (src.class)

_RA010.6771 deg (i) Positions from CXOGSG names (right ascension part) (pos.eq.ra;meta.main)
_DE+40.8644 deg (i) Positions from CXOGSG names (declination part) (pos.eq.dec;meta.main)
  
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