TABLE  rosat_bsc

Contains the parameters provided for each source in the ROSAT Bright Source Catalogue.

This table contains brief descriptions of the parameters provided for
each source in the ROSAT BSC.

Required constraints:
  • Primary key is (seqNo)

NameTypeLengthUnitDescriptionDefault ValueUnified Content Descriptor
srcNamevarchar16 ROSAT All-Sky Survey Catalogue source name meta.id;meta.main
seqNoint4 sequential object number in the BSC meta.id
cxfloat8 unit vector of spherical co-ordinates pos.distance;pos.cartesian.x
cyfloat8 unit vector of spherical co-ordinates pos.distance;pos.cartesian.y
czfloat8 unit vector of spherical co-ordinates pos.distance;pos.cartesian.z
htmIDbigint8 Hierarchical Triangular Mesh (HTM) index, 20 deep, for equatorial co-ordinates pos.eq
rafloat8degreesRight Ascension (decimal degrees; J2000) pos.eq.ra;meta.main
decfloat8degreesDeclination (decimal degrees; J2000) pos.eq.dec;meta.main
errPtinyint1arcsectotal positional error (1-sigma-radius; including 6" systematic error) stat.error
nFlagvarchar1 nearby sources affecting SASS flux determination meta.code
pFlagvarchar1 possible problem with position determination meta.code
eFlagvarchar1 source extended beyond SASS extraction radius meta.code
dFlagvarchar1 complex diffuse emission pattern meta.code
mFlagvarchar1 source missed by SASS meta.code
rFlagvarchar1 source counts and extraction radius recalculated meta.code
iFlagvarchar1 broad band image available meta.code
vFlagvarchar1 variability flag meta.code
dumvarchar1 dummy flag meta.code
srcCpsreal4counts/secsource countrate in the broad energy band, vignetting corrected phot.count;em.X-ray
errSrcCpsreal4counts/serror of source countrate, vignetting corrected stat.error
bgrCpsareal4counts/sec/arcmin**2background countrate, vignetting corrected instr.background
expTimesmallint2secexposure time time.duration;obs.exposure
hr1float8 hardness ratio 1 phot.flux;arith.ratio
errHr1float8 error of hardness ratio 1 stat.error
hr2float8 hardness ratio 2 phot.flux;arith.ratio
errHr2float8 error of hardness ratio 2 stat.error
extsmallint2arcsecsource extent phys.angSize
extlsmallint2 likelihood of source extent stat.likelihood
srclsmallint2 likelihood of source detection stat.likelihood
extrsmallint2arcsecextraction radius stat.fit.param
priFlgMbtinyint1 priority flag M-broad meta.code
priFlgLbtinyint1 priority flag L-broad meta.code
priFlgMhtinyint1 priority flag M-hard meta.code
priFlgLhtinyint1 priority flag L-hard meta.code
priFlgMstinyint1 priority flag M-soft meta.code
priFlgLstinyint1 priority flag L-soft meta.code
phaRangevarchar1 PHA range with highest detection likelihood meta.code
vigffloat8 vignetting factor instr.param
orgDatedatetime8mm-dd-yyyydate when source was included (MM-DD-YYYY) time.epoch
modDatedatetime8mm-dd-yyyydate when source properties were changed (MM-DD-YYYY) time.epoch
idCandsmallint2 number of identification candidates in the correlation catalogue meta.number
fieldIDvarchar8 identification number of SASS field obs.field
srcIDvarchar4 SASS source number (MASOL number) in SASS field meta.id
Total length177