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NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  ROSAT NEP X-ray source catalog (Henry+, 2006)
Post annotation
1.J/ApJS/162/304/table4ROSAT NEP X-ray source catalog (443 rows)

Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  RX (char) ROSAT-NEP source name (JHHMM.m+DDMM) (;meta.main)
  [GHM2003]  The NEP source number (see J/ApJS/149/29) (meta.ref;pos.frame)
  OptID  View data from Gioia et al. (Cat. J/ApJS/149/29) (meta.ref.url)
  RAJ2000 "h:m:s" (i) Hour of Right Ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 "d:m:s" (i) Degree of Declination (J2000) (pos.eq.dec;meta.main)
  CRate ct/s Net (0.1-2.4keV) count rate (Note 1)   (phot.count;em.X-ray)
  e_CRate ct/s The 1σ error in CRate (stat.error)
  ExpTime s Equivalent on-axis exposure time (time.duration;obs.exposure)
  NH 10+20/cm2(n) Hydrogen column density (Note 2)   (phys.columnDensity)
  HR1  Hardness ratio 1 (Note 3)   (phot.flux;arith.ratio)

ALL cols
(n) indicates a possible blank or NULL column(i)indexed column
  e_HR1  The 1σ error in HR1 (stat.error)
  HR2  Hardness ratio 2 (Note 3)   (phot.flux;arith.ratio)
  e_HR2  The 1σ error in HR2 (stat.error)
  Ext arcsec Sigma of the source extent (Note 4)   (phys.angSize)
  Ext-L  Difference in likelihood (Note 5)   (stat.likelihood)
  Exist  (n) Existence likelihood from Maximum likelihood analysis (Note 6)   (stat.likelihood)
  Map  Existence likelihood from MDETECT analysis (Note 7)   (stat.likelihood)
  Flux 10-17W/m2(n) Total observed 0.5-2keV unabsorbed flux in units of 10–14erg/s/cm2 (phot.flux;em.X-ray)
  Lum 10+37W (n) Total rest 0.5-2keV luminosity (Note 8)   (phys.luminosity)
  Class (char) Optical identification class (Note 9)   (src.class)
  z  (n) Spectroscopic redshift (src.redshift)
  Param  (n) Unabsorbed spectrum parameter, temperature in keV or photon index (Note 10)   (stat.param)
  SC  (n) Size correction (Note 10)   (arith.factor)

ALL cols
(n) indicates a possible blank or NULL column(i)indexed column
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