WSA Browser

Glossary of WSA attributes

This Glossary alphabetically lists all attributes used in the UKIDSSDR11 database(s) held in the WSA. If you would like to have more information about the schema tables please use the UKIDSSDR11 Schema Browser (other Browser versions).

A B C D E F G H I J K L M
N O P Q R S T U V W X Y Z

E

Name Schema Table Database Description Type Length Unit Default Value Unified Content Descriptor

e_b_v hipparcos_new_reduction GAIADR1 Formal error on B-V colour index float 8 mag em.opt;phot.colour;stat.error

e_bp_min_rp_percentile_lower gaia_source GAIADR2 Lower uncertainty on e_bp_min_rp_val real 4 mag

e_bp_min_rp_percentile_Upper gaia_source GAIADR2 Upper uncertainty on e_bp_min_rp_val real 4 mag

e_bp_min_rp_val gaia_source GAIADR2 Line-of-sight reddening E(BP-RP) real 4 mag

e_bt_mag tycho2 GAIADR1 Standard error on BT real 4 mag stat.error

e_de_deg tycho2 GAIADR1 Standard error of observed Tycho2 Dec float 8 milliarcsec stat.error

e_de_m_deg tycho2 GAIADR1 Standard error of mean Tycho2 Dec float 8 milliarcsec stat.error

e_de_rad hipparcos_new_reduction GAIADR1 Formal error on de_rad float 8 milliarcsec pos.eq.dec;stat.error

e_DEcs nvssSource NVSS Mean error on Dec real 4 arcsec ERROR

e_hp_mag hipparcos_new_reduction GAIADR1 Error on mean Hipparcos magnitude float 8 mag em.opt.V;phot.mag;stat.error

e_majAxis nvssSource NVSS Mean error on majAxis real 4 arcsec ERROR

e_minAxis nvssSource NVSS Mean error on minAxis real 4 arcsec ERROR

e_PA nvssSource NVSS Mean error on PA real 4 degrees ERROR

e_plx hipparcos_new_reduction GAIADR1 Formal error on parallax float 8 milliarcsec pos.parallax;stat.error

e_pm_de hipparcos_new_reduction GAIADR1 Formal error on pm_de float 8 milliarcsec/year pos.eq.dec;pos.pm;stat.error

e_pm_de tycho2 GAIADR1 Standard error of Dec proper motion real 4 milliarcsec/year stat.error

e_pm_ra hipparcos_new_reduction GAIADR1 Formal error on pm_ra float 8 milliarcsec/year pos.eq.ra;pos.pm;stat.error

e_pm_ra tycho2 GAIADR1 Standard error in RA*cos(Dec) of RA proper motion real 4 milliarcsec/year stat.error

e_polFlux nvssSource NVSS Mean error on polFlux real 4 mJy ERROR

e_polPA nvssSource NVSS Mean error on polPA real 4 mJy ERROR

e_ra_deg tycho2 GAIADR1 Standard error in RA*cos(Dec) of observed Tycho2 RA float 8 milliarcsec stat.error

e_ra_m_deg tycho2 GAIADR1 Standard error in RA*cos(Dec) of mean Tycho2 RA float 8 milliarcsec stat.error

e_ra_rad hipparcos_new_reduction GAIADR1 Formal error on ra_rad float 8 milliarcsec pos.eq.ra;stat.error

e_RAs nvssSource NVSS Mean error on RA real 4 s ERROR

e_S14 nvssSource NVSS Mean error on S14 real 4 mJy ERROR

e_score twomass_xsc 2MASS extended score: 1(extended) < e_score < 2(point-like). real 4 CODE_MISC

e_vt_mag tycho2 GAIADR1 Standard error on VT real 4 mag stat.error

eBV calSource WSACalib The galactic dust extinction value measured from the Schlegel, Finkbeiner & Davis (1998) maps. This uses the correction given in Bonifacio, Monai & Beers (2000). This correction reduces the extinction value in regions of high extinction (E(B-V)>0.1) real 4 -0.9999995e9

eBV dxsJKsource, dxsSource, lasExtendedSource, lasPointSource, lasSource, lasYJHKsource, reliableDxsSource, reliableLasPointSource, reliableUdsSource, udsSource WSA The galactic dust extinction value measured from the Schlegel, Finkbeiner & Davis (1998) maps. This uses the correction given in Bonifacio, Monai & Beers (2000). This correction reduces the extinction value in regions of high extinction (E(B-V)>0.1) real 4 -0.9999995e9

eBV lasYselJSourceRemeasurement WSA The galactic dust extinction value measured from the Schlegel, Finkbeiner & Davis (1998) maps. This uses the correction given in Bonifacio, Monai & Beers (2000). This correction reduces the extinction value in regions of high extinction (E(B-V)>0.1) real 4 -0.9999995e9 phys.absorption.gal

eBV uhsSource, uhsSourceAll WSAUHS The galactic dust extinction value measured from the Schlegel, Finkbeiner & Davis (1998) maps. This uses the correction given in Bonifacio, Monai & Beers (2000). This correction reduces the extinction value in regions of high extinction (E(B-V)>0.1) real 4 -0.9999995e9

ebv twompzPhotoz TWOMPZ The Galactic dust extinction value measured from the Schlegel, Finkbeiner & Davis (1998) maps. {image primary HDU keyword: EBV} real 4 mag -0.9999995e9 phys.absorption.gal

ebv wiseScosPhotoz, wiseScosPhotozRejects, wiseScosSvm WISExSCOSPZ The Galactic dust extinction value measured from the Schlegel, Finkbeiner & Davis (1998) maps. {image primary HDU keyword: Ebmv} real 4 mag -0.9999995e9 phys.absorption.gal

ecl_lat gaia_source GAIADR2 Ecliptic latitude float 8 degrees pos.ecliptic.lat

ecl_lat gaia_source GAIAEDR3 Ecliptic latitude float 8 degrees pos.ecliptic.lat

ecl_lat gaia_source, tgas_source GAIADR1 Ecliptic latitude float 8 degrees pos.ecliptic.lat

ecl_lon gaia_source GAIADR2 Ecliptic longitude float 8 degrees pos.ecliptic.lon

ecl_lon gaia_source GAIAEDR3 Ecliptic longitude float 8 degrees pos.ecliptic.lon

ecl_lon gaia_source, tgas_source GAIADR1 Ecliptic longitude float 8 degrees pos.ecliptic.lon

ecliptic_lat igsl_source GAIADR1 Ecliptic latitude real 4 degrees pos.ecliptic.lat

ecliptic_lon igsl_source GAIADR1 Ecliptic longitude real 4 degrees pos.ecliptic.lon

eFlag rosat_bsc, rosat_fsc ROSAT source extended beyond SASS extraction radius varchar 1 CODE_MISC

elat allwise_sc WISE Ecliptic latitude computed from the non-moving source fit equatorial position. CAUTION: This coordinate should not be used as an astrometric reference. float 8 deg

elat catwise_2020, catwise_prelim WISE ecliptic latitude float 8 deg

elat wise_allskysc WISE Ecliptic latitude. CAUTION: This coordinate should not be used as an astrometric reference. float 8 degrees

elat wise_prelimsc WISE Ecliptic latitude. CAUTION: This coordinate should not be used as an astrometric reference float 8 degrees

elat_avg catwise_2020, catwise_prelim WISE averaged ecliptic latitude float 8 deg

elatSig catwise_2020, catwise_prelim WISE one-sigma uncertainty in elat real 4 arcsec

ell UKIDSSDetection WSA 1-b/a, where a/b=semi-major/minor axes real 4 PHYS_ELLIPTICITY

ell calDetection WSACalib 1-b/a, where a/b=semi-major/minor axes {catalogue TType keyword: Ellipticity} real 4 PHYS_ELLIPTICITY

ell dxsDetection, gcsDetection, gpsDetection, lasDetection WSA 1-b/a, where a/b=semi-major/minor axes {catalogue TType keyword: Ellipticity} real 4 PHYS_ELLIPTICITY

ell lasMapRemeasAver WSA Averaged 1-b/a, where a/b=semi-major/minor axes (SE: THETA_IMAGE) real 4 src.ellipticity

ell lasMapRemeasurement WSA 1-b/a, where a/b=semi-major/minor axes (SE: THETA_IMAGE) {catalogue TType keyword: Ellipticity} real 4 src.ellipticity

ell ptsDetection WSATransit 1-b/a, where a/b=semi-major/minor axes {catalogue TType keyword: Ellipticity} real 4 PHYS_ELLIPTICITY

ell udsDetection WSA 1-b/a, where a/b=semi-major/minor axes (SE: THETA_IMAGE) {catalogue TType keyword: Ellipticity} real 4 PHYS_ELLIPTICITY

ell uhsDetection, uhsDetectionAll WSAUHS 1-b/a, where a/b=semi-major/minor axes {catalogue TType keyword: Ellipticity} real 4 PHYS_ELLIPTICITY

ellfit_flg twomass_xsc 2MASS ellipse fitting contamination flag. smallint 2 CODE_MISC

ELLIPTICITY mgcDetection MGC 1 - B_IMAGE/A_IMAGE real 4

elon allwise_sc WISE Ecliptic longitude computed from the non-moving source fit equatorial position. CAUTION: This coordinate should not be used as an astrometric reference. float 8 deg

elon catwise_2020, catwise_prelim WISE ecliptic longitude float 8 deg

elon wise_allskysc WISE Ecliptic longitude. CAUTION: This coordinate should not be used as an astrometric reference. float 8 degrees

elon wise_prelimsc WISE Ecliptic longitude. CAUTION: This coordinate should not be used as an astrometric reference float 8 degrees

elon_avg catwise_2020, catwise_prelim WISE averaged ecliptic longitude float 8 deg

elonSig catwise_2020, catwise_prelim WISE one-sigma uncertainty in elon real 4 arcsec

endCol MultiframeDetector WSA End column of array readout {image extension keyword: RDOUT_X2} smallint 2 meta.number

endCol MultiframeDetector WSACalib End column of array readout {image extension keyword: RDOUT_X2} smallint 2 meta.number

endCol MultiframeDetector WSATransit End column of array readout {image extension keyword: RDOUT_X2} smallint 2 meta.number

endCol MultiframeDetector WSAUHS End column of array readout {image extension keyword: RDOUT_X2} smallint 2 meta.number

endDate AstrCalVers WSA MJD of the end time for this version of the calibration float 8 Julian days time.epoch

endDate AstrCalVers WSACalib MJD of the end time for this version of the calibration float 8 Julian days time.epoch

endDate AstrCalVers WSATransit MJD of the end time for this version of the calibration float 8 Julian days time.epoch

endDate AstrCalVers WSAUHS MJD of the end time for this version of the calibration float 8 Julian days time.epoch

endDate PhotCalVers WSA Date time of end time for this version of the calibration (MM-DD-YYYY) datetime 8 MM-DD-YYYY 12-31-9999 time.epoch

endDate PhotCalVers WSACalib Date time of end time for this version of the calibration (MM-DD-YYYY) datetime 8 MM-DD-YYYY 12-31-9999 time.epoch

endDate PhotCalVers WSATransit Date time of end time for this version of the calibration (MM-DD-YYYY) datetime 8 MM-DD-YYYY 12-31-9999 time.epoch

endDate PhotCalVers WSAUHS Date time of end time for this version of the calibration (MM-DD-YYYY) datetime 8 MM-DD-YYYY 12-31-9999 time.epoch

endRow MultiframeDetector WSA End row of array readout {image extension keyword: RDOUT_Y2} smallint 2 meta.number

endRow MultiframeDetector WSACalib End row of array readout {image extension keyword: RDOUT_Y2} smallint 2 meta.number

endRow MultiframeDetector WSATransit End row of array readout {image extension keyword: RDOUT_Y2} smallint 2 meta.number

endRow MultiframeDetector WSAUHS End row of array readout {image extension keyword: RDOUT_Y2} smallint 2 meta.number

EP_1_FLUX twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 1 flux real 4 erg/cm**2/s

EP_1_FLUX_ERR twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 1 flux error
EP_1_FLUX_ERR = SQRT ( 1.0 / SUM ( 1 / ca_1_FLUX_ERR2 )), where ca = PN, M1, M2 real 4 erg/cm**2/s

EP_2_FLUX twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 2 flux real 4 erg/cm**2/s

EP_2_FLUX_ERR twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 2 flux error
EP_2_FLUX_ERR = SQRT ( 1.0 / SUM ( 1 / ca_2_FLUX_ERR2 )), where ca = PN, M1, M2 real 4 erg/cm**2/s

EP_3_FLUX twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 3 flux real 4 erg/cm**2/s

EP_3_FLUX_ERR twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 3 flux error
EP_3_FLUX_ERR = SQRT ( 1.0 / SUM ( 1 / ca_3_FLUX_ERR2 )), where ca = PN, M1, M2 real 4 erg/cm**2/s

EP_4_FLUX twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 4 flux real 4 erg/cm**2/s

EP_4_FLUX_ERR twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 4 flux error
EP_4_FLUX_ERR = SQRT ( 1.0 / SUM ( 1 / ca_4_FLUX_ERR2 )), where ca = PN, M1, M2 real 4 erg/cm**2/s

EP_5_FLUX twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 5 flux real 4 erg/cm**2/s

EP_5_FLUX_ERR twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 5 flux error
EP_5_FLUX_ERR = SQRT ( 1.0 / SUM ( 1 / ca_5_FLUX_ERR2 )), where ca = PN, M1, M2 real 4 erg/cm**2/s

EP_8_CTS twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM Combined band source counts real 4 counts

EP_8_CTS_ERR twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM Combined band source counts 1 σ error real 4 counts

EP_8_DET_ML twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 8 Maximum likelihood real 4

EP_8_FLUX twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 8 flux real 4 erg/cm**2/s

EP_8_FLUX_ERR twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 8 flux error
EP_8_FLUX_ERR = SQRT ( 1.0 / SUM ( 1 / ca_8_FLUX_ERR2 )), where ca = PN, M1, M2 real 4 erg/cm**2/s

EP_8_RATE twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 8 Count rates real 4 counts/s

EP_8_RATE_ERR twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 8 Count rates error real 4 counts/s

EP_9_DET_ML twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 9 Maximum likelihood real 4

EP_9_FLUX twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 9 flux real 4 erg/cm**2/s

EP_9_FLUX_ERR twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 9 flux error
EP_9_FLUX_ERR = SQRT ( 1.0 / SUM ( 1 / ca_9_FLUX_ERR2 )), where ca = PN, M1, M2 real 4 erg/cm**2/s

EP_9_RATE twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 9 Count rates real 4 counts/s

EP_9_RATE_ERR twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM EP band 9 Count rates error real 4 counts/s

EP_CHI2PROB twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0 XMM The Chi² probability (based on the null hypothesis) that the source as detected by any of the cameras, is constant. The minimum value of the available camera probabilities (PN_CHI2PROB, M1_CHI2PROB, M2_CHI2PROB) is given. real 4

EP_CHI2PROB xmm3dr4 XMM The Chi² probability (based on the null hypothesis) that the source as detected by any of the cameras, is constant. The minimum value of the available camera probabilities (PN_CHI2PROB, M1_CHI2PROB, M2_CHI2PROB) is given. float 8

ep_de1990 tycho2 GAIADR1 Epoch - 1990 of de_deg real 4 years time.epoch

ep_de_m tycho2 GAIADR1 Mean epoch of dec (Julian years) real 4 years time.epoch

EP_DIST_NN twoxmmi_dr3_v1_0 XMM The distance to the nearest neighbouring detection.
An internal threshold of 6 arseconds (before positional fitting) is used for splitting a source into two. real 4 arcsec

EP_EXTENT twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM The Extent radius of a source detected as extended. real 4 arcsec

EP_EXTENT_ERR twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM The Extent error of a source detected as extended. real 4 arcsec

EP_EXTENT_ML twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM The extent likelihood is the likelihood of the detection being extended as given by P = - ln (EXTENT_ML) , where P is the probability the extent occurring by chance. real 4

EP_FLAG twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0 XMM EPIC flag string made of the flags 1 - 12 (counted from left to right), where flag 10 is not used: it combines the PN, M1, and M2 flags, that is, a flag is set in EP_FLAG if at least one of the camera-dependent flags is set. varchar 12

EP_FLAG xmm3dr4 XMM EPIC flag string made of the flags 1 - 12 (counted from left to right), where flag 10 is not used: it combines the PN, M1, and M2 flags, that is, a flag is set in EP_FLAG if at least one of the camera-dependent flags is set. varchar 50

EP_HR1 twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM The EP hardness ratio between the bands 1 & 2
In the case where the rate in one band is 0.0 (i.e., too faint to be detected in this band) the hardness ratio will be -1 or +1 which is only a lower or upper limit, respectively. real 4

EP_HR1_ERR twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM The 1 σ error of the EP hardness ratio between the bands 1 & 2 real 4

EP_HR2 twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM The EP hardness ratio between the bands 2 & 3
In the case where the rate in one band is 0.0 (i.e., too faint to be detected in this band) the hardness ratio will be -1 or +1 which is only a lower or upper limit, respectively. real 4

EP_HR2_ERR twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM The 1 σ error of the EP hardness ratio between the bands 2 & 3 real 4

EP_HR3 twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM The EP hardness ratio between the bands 3 & 4
In the case where the rate in one band is 0.0 (i.e., too faint to be detected in this band) the hardness ratio will be -1 or +1 which is only a lower or upper limit, respectively. real 4

EP_HR3_ERR twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM The 1 σ error of the EP hardness ratio between the bands 3 & 4 real 4

EP_HR4 twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM The EP hardness ratio between the bands 4 & 5
In the case where the rate in one band is 0.0 (i.e., too faint to be detected in this band) the hardness ratio will be -1 or +1 which is only a lower or upper limit, respectively. real 4

EP_HR4_ERR twoxmm, twoxmm_v1_2, twoxmmi_dr3_v1_0, xmm3dr4 XMM The 1 σ error of the EP hardness ratio between the bands 4 & 5 real 4

EP_OFFAX twoxmmi_dr3_v1_0, xmm3dr4 XMM The EP offaxis angle (the distance between the detection position and the onaxis position on the respective detector).
The offaxis angle for a camera can be larger than 15 arcminutes when the detection is located outside the FOV of that camera. real 4 arcmin

EP_ONTIME twoxmmi_dr3_v1_0, xmm3dr4 XMM The EP ontime value (the total good exposure time (after GTI filtering) of the CCD where the detection is positioned).
If a source position falls into CCD gaps or outside of the detector it will have a NULL given. real 4 s

ep_ra1990 tycho2 GAIADR1 Epoch - 1990 of ra_deg real 4 years time.epoch

ep_ra_m tycho2 GAIADR1 Mean epoch of ra (Julian years) real 4 years time.epoch

epoch RequiredMergeLogMultiEpoch WSA Epoch number in MergeLog table tinyint 1

epoch RequiredMergeLogMultiEpoch WSAUHS Epoch number in MergeLog table tinyint 1

epoch calVariability WSACalib Epoch of measurement float 8 Years TIME_EPOCH

The Variability table contains statistics from the set of observations of each source. At present, the mean ra and dec and the error in two tangential directions are calculated. The "ra" direction is defined as tangential to both the radial direction and the cartesian z-axis and the "dec" direction is defined as both the radial direction and the "ra" direction. Since the current model is just the mean and standard deviation of the data, then the chi-squared of the fit=1. Data from good frames across all bands go into the astrometric model determination. This will include bands in non-synoptic filters: the one observation in these bands can help. In future releases a fit will be made to the rms data as a function of magnitude in each band, as has already happened for photometric data and a motion model that incorporates proper motion (and possibly parallax) will be used. The motion model is a parameter in the VarFrameSetInfo table.

epoch dxsVariability, gcsVariability, gpsVariability, lasVariability, udsVariability WSA Epoch of measurement float 8 Years TIME_EPOCH

The Variability table contains statistics from the set of observations of each source. At present, the mean ra and dec and the error in two tangential directions are calculated. The "ra" direction is defined as tangential to both the radial direction and the cartesian z-axis and the "dec" direction is defined as both the radial direction and the "ra" direction. Since the current model is just the mean and standard deviation of the data, then the chi-squared of the fit=1. Data from good frames across all bands go into the astrometric model determination. This will include bands in non-synoptic filters: the one observation in these bands can help. In future releases a fit will be made to the rms data as a function of magnitude in each band, as has already happened for photometric data and a motion model that incorporates proper motion (and possibly parallax) will be used. The motion model is a parameter in the VarFrameSetInfo table.

epoch gcsPointSource, gcsSource, gcsZYJHKsource, gpsJHKsource, gpsPointSource, gpsSource, lasExtendedSource, lasPointSource, lasSource, lasYJHKsource, reliableGcsPointSource, reliableGpsPointSource, reliableLasPointSource WSA Epoch of position measurement float 8 Years TIME_EPOCH

epoch uhsVariability WSAUHS Epoch of measurement float 8 Years TIME_EPOCH

The Variability table contains statistics from the set of observations of each source. At present, the mean ra and dec and the error in two tangential directions are calculated. The "ra" direction is defined as tangential to both the radial direction and the cartesian z-axis and the "dec" direction is defined as both the radial direction and the "ra" direction. Since the current model is just the mean and standard deviation of the data, then the chi-squared of the fit=1. Data from good frames across all bands go into the astrometric model determination. This will include bands in non-synoptic filters: the one observation in these bands can help. In future releases a fit will be made to the rms data as a function of magnitude in each band, as has already happened for photometric data and a motion model that incorporates proper motion (and possibly parallax) will be used. The motion model is a parameter in the VarFrameSetInfo table.

epoch ukirtFSstars WSA The epoch of columns ra and dec real 4 years -0.9999995e9

epoch ukirtFSstars WSACalib The epoch of columns ra and dec real 4 years -0.9999995e9

epoch ukirtFSstars WSAUHS The epoch of columns ra and dec real 4 years -0.9999995e9

epoch_g cepheid, rrlyrae GAIADR1 Epoch of the maximum of the light curve in the G band float 8 Barycentric JD in TCB - 2455197.5 days time.epoch;stat.max

epoch_g_error cepheid, rrlyrae GAIADR1 Uncertainty on epoch of the maximum of the light curve in the G band float 8 days stat.error;time.epoch

epochFrameType Programme WSA The frame type to be used for each epoch (stack, tile) varchar 16 NONE

epochFrameType Programme WSACalib The frame type to be used for each epoch (stack, tile) varchar 16 NONE

epochFrameType Programme WSATransit The frame type to be used for each epoch (stack, tile) varchar 16 NONE

epochFrameType Programme WSAUHS The frame type to be used for each epoch (stack, tile) varchar 16 NONE

epochMean ObjectThin PS1DR2 Modified Julian Date of the mean epoch corresponding to raMean, decMean (equinox J2000). Note that Gaia DR1 data is sometimes included in the mean position; in those cases, the epochMean value is near the Gaia DR1 epoch 2015.5 = MJD 15023. As a result, epochMean is not necessarily near the mean value of the PS1 measurement dates. float 8 days -999

epochTolerance Programme WSA Minimum separation of epochs for proper motion calculation real 4 days -0.9999995e9 ??

epochTolerance Programme WSACalib Minimum separation of epochs for proper motion calculation real 4 days -0.9999995e9 ??

epochTolerance Programme WSATransit Minimum separation of epochs for proper motion calculation real 4 days -0.9999995e9 ??

epochTolerance Programme WSAUHS Minimum separation of epochs for proper motion calculation real 4 days -0.9999995e9 ??

equinox Multiframe WSA Equinox of object position {image primary HDU keyword: EQUINOX} real 4 years -0.9999995e9 time.equinox

equinox Multiframe WSACalib Equinox of object position {image primary HDU keyword: EQUINOX} real 4 years -0.9999995e9 time.equinox

equinox Multiframe WSATransit Equinox of object position {image primary HDU keyword: EQUINOX} real 4 years -0.9999995e9 time.equinox

equinox Multiframe WSAUHS Equinox of object position {image primary HDU keyword: EQUINOX} real 4 years -0.9999995e9 time.equinox

err_ang twomass_psc 2MASS Position angle on the sky of the semi-major axis of the position uncertainty ellipse (East of North) smallint 2 degrees POS_POS-ANG

err_ang twomass_sixx2_psc 2MASS angle of error ellipse major axis (E of N) smallint 2 deg

err_maj twomass_psc 2MASS Semi-major axis length of the one sigma position uncertainty ellipse real 4 arcsec EXTENSION_RAD

err_maj twomass_sixx2_psc 2MASS major axis of 1-sigma error ellipse real 4 arcsec

err_min twomass_psc 2MASS Semi-minor axis length of the one sigma position uncertainty ellipse real 4 arcsec EXTENSION_RAD

err_min twomass_sixx2_psc 2MASS minor axis of 1-sigma error ellipse real 4 arcsec

ERRA_IMAGE mgcDetection MGC Position error along major axis real 4 pixel

ERRB_IMAGE mgcDetection MGC Position error along minor axis real 4 pixel

errBits UKIDSSDetection WSA processing warning/error bitwise flags int 4 CODE_MISC

errBits calDetection WSACalib processing warning/error bitwise flags {catalogue TType keyword: Error_bit_flag} int 4 CODE_MISC

Apparently not actually an error bit flag, but a count of the number of zero confidence pixels in the default (2 arcsec diameter) aperture.

errBits dxsDetection, gcsDetection, gpsDetection, lasDetection WSA processing warning/error bitwise flags {catalogue TType keyword: Error_bit_flag} int 4 CODE_MISC

Apparently not actually an error bit flag, but a count of the number of zero confidence pixels in the default (2 arcsec diameter) aperture.

errBits lasMapRemeasurement WSA processing warning/error bitwise flags {catalogue TType keyword: Error_bit_flag} int 4 meta.code

This uses the FLAGS attribute in SE. The individual bit flags that this can be decomposed into are as follows:

Bit Flag Meaning

1 The object has neighbours, bright enough and close enough to significantly bias the MAG_AUTO photometry or bad pixels (more than 10% of photometry affected).

2 The object was originally blended with another

4 At least one pixel is saturated (or very close to)

8 The object is truncated (too close to an image boundary)

16 Object's aperture data are incomplete or corrupted

32 Object's isophotal data are imcomplete or corrupted. This is an old flag inherited from SE v1.0, and is kept for compatability reasons. It doesn't have any consequence for the extracted parameters.

64 Memory overflow occurred during deblending

128 Memory overflow occurred during extraction

errBits ptsDetection WSATransit processing warning/error bitwise flags {catalogue TType keyword: Error_bit_flag} int 4 CODE_MISC

Apparently not actually an error bit flag, but a count of the number of zero confidence pixels in the default (2 arcsec diameter) aperture.

errBits udsDetection WSA processing warning/error bitwise flags {catalogue TType keyword: Error_bit_flag} int 4 CODE_MISC

This uses the FLAGS attribute in SE. The individual bit flags that this can be decomposed into are as follows:

Bit Flag Meaning

1 The object has neighbours, bright enough and close enough to significantly bias the MAG_AUTO photometry or bad pixels (more than 10% of photometry affected).

2 The object was originally blended with another

4 At least one pixel is saturated (or very close to)

8 The object is truncated (too close to an image boundary)

16 Object's aperture data are incomplete or corrupted

32 Object's isophotal data are imcomplete or corrupted. This is an old flag inherited from SE v1.0, and is kept for compatability reasons. It doesn't have any consequence for the extracted parameters.

64 Memory overflow occurred during deblending

128 Memory overflow occurred during extraction

errBits uhsDetection, uhsDetectionAll WSAUHS processing warning/error bitwise flags {catalogue TType keyword: Error_bit_flag} int 4 CODE_MISC

Apparently not actually an error bit flag, but a count of the number of zero confidence pixels in the default (2 arcsec diameter) aperture.

errHr1 rosat_bsc, rosat_fsc ROSAT error of hardness ratio 1 float 8 ERROR

errHr2 rosat_bsc, rosat_fsc ROSAT error of hardness ratio 2 float 8 ERROR

errP rosat_bsc ROSAT total positional error (1-sigma-radius; including 6" systematic error) tinyint 1 arcsec ERROR

errP rosat_fsc ROSAT total positional error (1-sigma-radius; including 6" systematic error) smallint 2 arcsec ERROR

errSrcCps rosat_bsc, rosat_fsc ROSAT error of source countrate, vignetting corrected real 4 counts/s ERROR

eta CurrentAstrometry WSACalib SDSS system spherical co-ordinate 2 of device centre float 8 Degrees pos

eta CurrentAstrometry WSATransit SDSS system spherical co-ordinate 2 of device centre float 8 Degrees pos

eta CurrentAstrometry WSAUHS SDSS system spherical co-ordinate 2 of device centre float 8 Degrees pos

eta CurrentAstrometry, PreviousAstrometry WSA SDSS system spherical co-ordinate 2 of device centre float 8 Degrees pos

eta dxsDetection, dxsJKsource, dxsSource, gcsDetection, gcsPointSource, gcsSource, gcsZYJHKsource, gpsDetection, gpsJHKsource, gpsPointSource, gpsSource, lasDetection, lasExtendedSource, lasPointSource, lasSource, lasYJHKsource, reliableDxsSource, reliableGcsPointSource, reliableGpsPointSource, reliableLasPointSource, reliableUdsSource, UKIDSSDetection, udsDetection, udsSource WSA SDSS system spherical co-ordinate 2 float 8 Degrees POS

eta calDetection, calSource, calSynopticSource WSACalib SDSS system spherical co-ordinate 2 float 8 Degrees POS

eta gaiaxwise_matches GAIAXWISE Photometric logarithmic likelihood ratio of Gaia-WISE match, as described by equation 37 of Wilson & Naylor (2018a, MNRAS, 473, 5570). float 8 dimensionless

eta lasMapRemeasAver, lasMapRemeasurement WSA SDSS system spherical co-ordinate 2 float 8 Degrees pos

eta lasYselJSourceRemeasurement WSA SDSS system spherical co-ordinate 2 of aperture float 8 Degrees pos

eta ptsDetection WSATransit SDSS system spherical co-ordinate 2 float 8 Degrees POS

eta uhsDetection, uhsDetectionAll, uhsSource, uhsSourceAll WSAUHS SDSS system spherical co-ordinate 2 float 8 Degrees POS

ETA_TYPE mgcGalaxyStruct MGC 2dFGRS Eta type real 4 -99.9

expAstErr calVariability WSACalib Rms calculated from polynomial fit to minimum astrometric RMS as a function of magnitude real 4 arcsec -0.9999995e9

The Variability table contains statistics from the set of observations of each source. At present, the mean ra and dec and the error in two tangential directions are calculated. The "ra" direction is defined as tangential to both the radial direction and the cartesian z-axis and the "dec" direction is defined as both the radial direction and the "ra" direction. Since the current model is just the mean and standard deviation of the data, then the chi-squared of the fit=1. Data from good frames across all bands go into the astrometric model determination. This will include bands in non-synoptic filters: the one observation in these bands can help. In future releases a fit will be made to the rms data as a function of magnitude in each band, as has already happened for photometric data and a motion model that incorporates proper motion (and possibly parallax) will be used. The motion model is a parameter in the VarFrameSetInfo table.

expAstErr dxsVariability, gcsVariability, gpsVariability, lasVariability, udsVariability WSA Rms calculated from polynomial fit to minimum astrometric RMS as a function of magnitude real 4 arcsec -0.9999995e9

The Variability table contains statistics from the set of observations of each source. At present, the mean ra and dec and the error in two tangential directions are calculated. The "ra" direction is defined as tangential to both the radial direction and the cartesian z-axis and the "dec" direction is defined as both the radial direction and the "ra" direction. Since the current model is just the mean and standard deviation of the data, then the chi-squared of the fit=1. Data from good frames across all bands go into the astrometric model determination. This will include bands in non-synoptic filters: the one observation in these bands can help. In future releases a fit will be made to the rms data as a function of magnitude in each band, as has already happened for photometric data and a motion model that incorporates proper motion (and possibly parallax) will be used. The motion model is a parameter in the VarFrameSetInfo table.

expAstErr uhsVariability WSAUHS Rms calculated from polynomial fit to minimum astrometric RMS as a function of magnitude real 4 arcsec -0.9999995e9

The Variability table contains statistics from the set of observations of each source. At present, the mean ra and dec and the error in two tangential directions are calculated. The "ra" direction is defined as tangential to both the radial direction and the cartesian z-axis and the "dec" direction is defined as both the radial direction and the "ra" direction. Since the current model is just the mean and standard deviation of the data, then the chi-squared of the fit=1. Data from good frames across all bands go into the astrometric model determination. This will include bands in non-synoptic filters: the one observation in these bands can help. In future releases a fit will be made to the rms data as a function of magnitude in each band, as has already happened for photometric data and a motion model that incorporates proper motion (and possibly parallax) will be used. The motion model is a parameter in the VarFrameSetInfo table.

expTime Detection PS1DR2 Exposure time of the frame/exposure. Necessary for converting listed fluxes and magnitudes back to measured ADU counts. real 4 seconds -999

expTime Multiframe WSA Integration time per exposure {image primary HDU keyword: EXP_TIME} real 4 seconds -0.9999995e9 time.duration;obs.exposure

expTime Multiframe WSACalib Integration time per exposure {image primary HDU keyword: EXP_TIME} real 4 seconds -0.9999995e9 time.duration;obs.exposure

expTime Multiframe WSATransit Integration time per exposure {image primary HDU keyword: EXP_TIME} real 4 seconds -0.9999995e9 time.duration;obs.exposure

expTime Multiframe WSAUHS Integration time per exposure {image primary HDU keyword: EXP_TIME} real 4 seconds -0.9999995e9 time.duration;obs.exposure

expTime rosat_bsc ROSAT exposure time smallint 2 sec TIME_EXPTIME

expTime rosat_fsc ROSAT exposure time int 4 sec TIME_EXPTIME

ext rosat_bsc, rosat_fsc ROSAT source extent smallint 2 arcsec EXTENSION_DIAM

ext_cat_solution_type gaia_hip_tycho2_match GAIADR1 Type of solution in the Hipparcos/Tycho2 catalogue varchar 1 meta.code

ext_flg allwise_sc WISE Extended source flag. This is an integer flag, the value of which indicates whether or not the morphology of a source is consistent with the WISE point spread function in any band, or whether the source is associated with or superimposed on a previously known extended object from the 2MASS Extended Source Catalog (XSC). CAUTION: WISE profile-fit (w?mpro) and standard aperture (w?mag) measurements are optimized for point sources and will systematically underestimate the true flux of resolved objects. If a source entry has ext_flg>0, you may wish to examine the large aperture photometry, or the elliptical aperture photometry which are measured using areas that are scaled from 2MASS XSC morphologies. int 4

The values of the ext_flg indicate the following conditions:

0 - The source shape is consistent with a point-source and the source is not associated with or superimposed on a 2MASS XSC source

1 - The profile-fit photometry goodness-of-fit, w?rchi2, is >3.0 in one or more bands.

2 - The source falls within the extrapolated isophotal footprint of a 2MASS XSC source.

3 - The profile-fit photometry goodness-of-fit,w?rchi2, is >3.0 in one or more bands, and the source falls within the extrapolated isophotal footprint of a 2MASS XSC source.

4 - The source position falls within 5" of a 2MASS XSC source.

5 - The profile-fit photometry goodness-of-fit,w?rchi2, is >3.0 in one or more bands, and the source position falls within 5" of a 2MASS XSC source.

ext_flg wise_allskysc WISE Extended source flag.
This flag indicates whether or not the morphology of a source is consistent with the WISE point spread function in any band or whether the source is associated with or superimposed on a previously known extended object from the 2MASS Extended Source Catalog (XSC): 0 - The source shape is consistent with a point-source; 1 - The source shape is not consistent with a point-source; 2 - The source falls within the extrapolated isophotal footprint of a 2MASS XSC source; 3 - The profile-fit photometry goodness-of-fit, w?rchi2, is >3.0 in one or more bands, and The source falls within the extrapolated isophotal footprint of a 2MASS XSC source; 4 - The source position falls within 5" of a 2MASS XSC source; 5 - The profile-fit photometry goodness-of-fit, w?rchi2, is >3.0 in one or more bands, and the source position falls within 5" of a 2MASS XSC source. CAUTION: WISE profile-fit (w?mpro) and standard aperture (w?mag) measurements are optimized for point sources and will systematically underestimate the true flux of resolved objects. tinyint 1

ext_flg wise_prelimsc WISE Extended source flag
This flag indicates whether or not the morphology of a source is consistent with the WISE point spread function in any band: 0 - The source shape is consistent with a point-source; 1 - The source shape is not consistent with a point-source tinyint 1

ext_key twomass_psc 2MASS Unique identification number of the record in the XSC that corresponds to this point source. int 4 ID_NUMBER

ext_key twomass_xsc 2MASS entry counter (key) number (unique within table). int 4 ID_NUMBER

extinction Multiframe WSA Extinction coefficient {image primary HDU keyword: EXTINCT} real 4 mag -0.9999995e9

extinction Multiframe WSACalib Extinction coefficient {image primary HDU keyword: EXTINCT} real 4 mag -0.9999995e9

extinction Multiframe WSATransit Extinction coefficient {image primary HDU keyword: EXTINCT} real 4 mag -0.9999995e9

extinction Multiframe WSAUHS Extinction coefficient {image primary HDU keyword: EXTINCT} real 4 mag -0.9999995e9

extinctionCat MultiframeDetector WSA Extinction coefficient for the catalogue data {catalogue extension keyword: EXTINCT} real 4 mags -0.9999995e9 ??

For WFCAM these are currently set to a constant clear night level, which within the current measuring error is the same for all passbands. Note that the frame-by-frame derived ZP from 2MASS automatically corrects for extinction variations, assuming they are uniform across the field of view.

extinctionCat MultiframeDetector WSACalib Extinction coefficient for the catalogue data {catalogue extension keyword: EXTINCT} real 4 mags -0.9999995e9 ??

For WFCAM these are currently set to a constant clear night level, which within the current measuring error is the same for all passbands. Note that the frame-by-frame derived ZP from 2MASS automatically corrects for extinction variations, assuming they are uniform across the field of view.

extinctionCat MultiframeDetector WSATransit Extinction coefficient for the catalogue data {catalogue extension keyword: EXTINCT} real 4 mags -0.9999995e9 ??

For WFCAM these are currently set to a constant clear night level, which within the current measuring error is the same for all passbands. Note that the frame-by-frame derived ZP from 2MASS automatically corrects for extinction variations, assuming they are uniform across the field of view.

extinctionCat MultiframeDetector WSAUHS Extinction coefficient for the catalogue data {catalogue extension keyword: EXTINCT} real 4 mags -0.9999995e9 ??

For WFCAM these are currently set to a constant clear night level, which within the current measuring error is the same for all passbands. Note that the frame-by-frame derived ZP from 2MASS automatically corrects for extinction variations, assuming they are uniform across the field of view.

extinctionExt MultiframeDetector WSA Extinction coefficient of the detector {image extension keyword: EXTINCT} real 4 mags -0.9999995e9 ??

For WFCAM these are currently set to a constant clear night level, which within the current measuring error is the same for all passbands. Note that the frame-by-frame derived ZP from 2MASS automatically corrects for extinction variations, assuming they are uniform across the field of view.

extinctionExt MultiframeDetector WSACalib Extinction coefficient of the detector {image extension keyword: EXTINCT} real 4 mags -0.9999995e9 ??

For WFCAM these are currently set to a constant clear night level, which within the current measuring error is the same for all passbands. Note that the frame-by-frame derived ZP from 2MASS automatically corrects for extinction variations, assuming they are uniform across the field of view.

extinctionExt MultiframeDetector WSATransit Extinction coefficient of the detector {image extension keyword: EXTINCT} real 4 mags -0.9999995e9 ??

For WFCAM these are currently set to a constant clear night level, which within the current measuring error is the same for all passbands. Note that the frame-by-frame derived ZP from 2MASS automatically corrects for extinction variations, assuming they are uniform across the field of view.

extinctionExt MultiframeDetector WSAUHS Extinction coefficient of the detector {image extension keyword: EXTINCT} real 4 mags -0.9999995e9 ??

For WFCAM these are currently set to a constant clear night level, which within the current measuring error is the same for all passbands. Note that the frame-by-frame derived ZP from 2MASS automatically corrects for extinction variations, assuming they are uniform across the field of view.

extinctionMapList Programme WSA A list of 3D extinction maps that should be matched to this survey varchar 32 NONE meta.id

extinctionMapList Programme WSACalib A list of 3D extinction maps that should be matched to this survey varchar 32 NONE meta.id

extinctionMapList Programme WSATransit A list of 3D extinction maps that should be matched to this survey varchar 32 NONE meta.id

extinctionMapList Programme WSAUHS A list of 3D extinction maps that should be matched to this survey varchar 32 NONE meta.id

extl rosat_bsc, rosat_fsc ROSAT likelihood of source extent smallint 2 STAT_LIKELIHOOD

extMapID gpsSourceExtinction WSA UID of 3D extinction map used tinyint 1 0

extNSigma Detection PS1DR2 An extendedness measure based on the deviation between PSF and Kron (1980) magnitudes, normalized by the PSF magnitude uncertainty. real 4 0

extNum CurrentAstrometry WSACalib the extension number of this frame tinyint 1 meta.number

extNum CurrentAstrometry WSATransit the extension number of this frame tinyint 1 meta.number

extNum CurrentAstrometry WSAUHS the extension number of this frame tinyint 1 meta.number

extNum CurrentAstrometry, EpochFrameStatus, lasMapRemeasurement, MultiframeDetector, PreviousAstrometry, PreviousMFDZP WSA the extension number of this frame tinyint 1 meta.number

extNum dxsAstrometricInfo, dxsDetection, dxsFrameSets, dxsOrphan, dxsSourceXDetectionBestMatch, gcsAstrometricInfo, gcsDetection, gcsFrameSets, gcsOrphan, gcsSourceXDetectionBestMatch, gpsAstrometricInfo, gpsDetection, gpsFrameSets, gpsOrphan, gpsSourceXDetectionBestMatch, lasAstrometricInfo, lasDetection, lasFrameSets, lasOrphan, lasSourceXDetectionBestMatch, UKIDSSDetection, udsAstrometricInfo, udsDetection, udsFrameSets, udsOrphan, udsSourceXDetectionBestMatch WSA the extension number of this frame tinyint 1 NUMBER

extNum calDetection WSACalib the extension number of this frame tinyint 1 NUMBER

extNum lasMapRemeasAver WSA the extension number of this frame. tinyint 1 meta.number

extNum ptsDetection WSATransit the extension number of this frame tinyint 1 NUMBER

extNum uhsAstrometricInfo, uhsDetection, uhsDetectionAll, uhsOrphan, uhsSourceXDetectionBestMatch WSAUHS the extension number of this frame tinyint 1 NUMBER

extPixelID gpsSourceExtinction WSA Pixel ID from 3D extinction map that matches source position int 4 -99999999

extProgID RequiredNeighbours WSA the unique programme ID for second table if there are multiple programmes in the neighbour survey int 4 -99999999 meta.id

extProgID RequiredNeighbours WSACalib the unique programme ID for second table if there are multiple programmes in the neighbour survey int 4 -99999999 meta.id

extProgID RequiredNeighbours WSATransit the unique programme ID for second table if there are multiple programmes in the neighbour survey int 4 -99999999 meta.id

extProgID RequiredNeighbours WSAUHS the unique programme ID for second table if there are multiple programmes in the neighbour survey int 4 -99999999 meta.id

extr rosat_bsc, rosat_fsc ROSAT extraction radius smallint 2 arcsec REDUCT_EXTR-RAD

extractor RequiredMatchedApertureProduct WSA CASU list driven or SExtractor dual image mode varchar 16

extractor RequiredMatchedApertureProduct WSAUHS CASU list driven or SExtractor dual image mode varchar 16

extractor RequiredMosaicTopLevel WSAUHS Extraction software (e.g. SExtractor) varchar 16

extractParamTemp RequiredMosaicTopLevel WSAUHS Template file for SWARP parameters varchar 32 NONE

extractTool Programme WSA Name of extraction tool to be used varchar 8 NONE ??

extractTool Programme WSACalib Name of extraction tool to be used varchar 8 NONE ??

extractTool Programme WSATransit Name of extraction tool to be used varchar 8 NONE ??

extractTool Programme WSAUHS Name of extraction tool to be used varchar 8 NONE ??

extTableID ExternalSurveyTable WSACalib the unique table ID int 4 meta.id;meta.main

extTableID ExternalSurveyTable WSATransit the unique table ID int 4 meta.id;meta.main

extTableID ExternalSurveyTable WSAUHS the unique table ID int 4 meta.id;meta.main

extTableID ExternalSurveyTable, RequiredNeighbours WSA the unique table ID int 4 meta.id;meta.main

extTableName ExternalSurveyTable WSA the name of the table varchar 256 meta.id;meta.dataset

extTableName ExternalSurveyTable WSACalib the name of the table varchar 256 meta.id;meta.dataset

extTableName ExternalSurveyTable WSATransit the name of the table varchar 256 meta.id;meta.dataset

extTableName ExternalSurveyTable WSAUHS the name of the table varchar 256 meta.id;meta.dataset

WFAU, Institute for Astronomy,
Royal Observatory, Blackford Hill
Edinburgh, EH9 3HJ, UK

wsa-support@roe.ac.uk
17/01/2022