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

G

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

g_flux phot_variable_time_series_g_fov GAIADR1 G-band flux for each FoV observation float 8 electrons/second phot.flux;em.opt

g_flux_error phot_variable_time_series_g_fov GAIADR1 Estimated uncertainty on G-band flux for each FoV observation float 8 electrons/second stat.error;phot.flux;em.opt

g_mag_zero_oint_error ext_phot_zero_point GAIADR1 Uncertainty on G magnitude zero point float 8 mag stat.error;phot.mag;arith.zp;em.opt

g_mag_zero_point ext_phot_zero_point GAIADR1 G magnitude zero point float 8 mag phot.mag;arith.zp;em.opt

g_magnitude phot_variable_time_series_g_fov GAIADR1 G-band magnitude for each FoV observation float 8 mag phot.mag;em.opt

g_rp gaia_source GAIADR2 G-RP colour real 4 mag phot.colour

g_rp gaia_source GAIAEDR3 G-RP colour real 4 mag phot.colour

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

gaia_avg_cont gaiaxwise_matches GAIAXWISE Mean contaminating relative flux within PSFs when constructing h_offsets for Gaia sources at the local density, magnitude and intrinsic positional uncertainty of the primary source. float 8 dimensionless

gaia_bp gaia_nonmatches, gaiaxwise_matches GAIAXWISE BP mean magnitude float 8 mag phot.mag;em.op

gaia_cont_p1 gaiaxwise_matches GAIAXWISE Probability of Gaia source having contaminant of at least 1% relative flux given its separation from its corresponding WISE detection, as given by equation 12 of Wilson & Naylor (2018b, MNRAS, 481, 2148). float 8 dimensionless

gaia_cont_p10 gaiaxwise_matches GAIAXWISE Probability of Gaia source having contaminant of at least 10% relative flux given its separation from its corresponding WISE detection. float 8 dimensionless

gaia_dec gaia_nonmatches, gaiaxwise_matches GAIAXWISE Celestial Declination float 8 degrees pos.eq.dec;meta.main

gaia_designation gaia_nonmatches, gaiaxwise_matches GAIAXWISE Unique source designation varchar 32 dimensionless meta.id;meta.main

gaia_g gaia_nonmatches, gaiaxwise_matches GAIAXWISE G-band mean magnitude float 8 mag phot.mag;em.op

gaia_p gaia_nonmatches GAIAXWISE match probability float 8 dimensionless

gaia_ra gaia_nonmatches, gaiaxwise_matches GAIAXWISE Celestial Right Ascension float 8 degrees pos.eq.ra;meta.main

gaia_rp gaia_nonmatches, gaiaxwise_matches GAIAXWISE RP mean magnitude float 8 mag phot.mag;em.op

gaia_source_ID gaia_nonmatches, gaiaxwise_matches GAIAXWISE Gaia integer unique source designation bigint 8 dimensionless

gain MultiframeDetector WSA Detector gain {image extension keyword: GAIN} real 4 electrons/ADU -0.9999995e9 ??

gain MultiframeDetector WSACalib Detector gain {image extension keyword: GAIN} real 4 electrons/ADU -0.9999995e9 ??

gain MultiframeDetector WSATransit Detector gain {image extension keyword: GAIN} real 4 electrons/ADU -0.9999995e9 ??

gain MultiframeDetector WSAUHS Detector gain {image extension keyword: GAIN} real 4 electrons/ADU -0.9999995e9 ??

gal_contam twomass_psc 2MASS Extended source "contamination" flag. smallint 2 CODE_MISC

gal_contam twomass_sixx2_psc 2MASS src contaminated by galaxy (check blanked/subtracted tbl) smallint 2

galactic_lat igsl_source GAIADR1 Galactic latitude real 4 degrees pos.galatic.lat

galactic_lon igsl_source GAIADR1 Galactic longitude real 4 degrees pos.galatic.lon

gApFillFac StackObjectAttributes PS1DR2 Aperture fill factor from g filter stack detection. real 4 -999

gApFlux StackObjectAttributes PS1DR2 Aperture flux from g filter stack detection. real 4 Janskys -999

gApFluxErr StackObjectAttributes PS1DR2 Error in aperture flux from g filter stack detection. real 4 Janskys -999

gApMag StackObjectThin PS1DR2 Aperture magnitude from g filter stack detection. real 4 AB magnitudes -999

gApMagErr StackObjectThin PS1DR2 Error in aperture magnitude from g filter stack detection. real 4 AB magnitudes -999

gApRadius StackObjectAttributes PS1DR2 Aperture radius for g filter stack detection. real 4 arcsec -999

gauSig UKIDSSDetection WSA RMS of axes of ellipse fit real 4 pixels MORPH_PARAM

gauSig calDetection WSACalib RMS of axes of ellipse fit {catalogue TType keyword: Gaussian_sigma} real 4 pixels MORPH_PARAM

These are derived from the three general intensity-weighted second moments. The equivalence between them and a generalised elliptical Gaussian Distribution is used to derive Gaussian sigma = (σ_a²+σ_b²)^½

gauSig dxsDetection, gcsDetection, gpsDetection, lasDetection WSA RMS of axes of ellipse fit {catalogue TType keyword: Gaussian_sigma} real 4 pixels MORPH_PARAM

These are derived from the three general intensity-weighted second moments. The equivalence between them and a generalised elliptical Gaussian Distribution is used to derive Gaussian sigma = (σ_a²+σ_b²)^½

gauSig lasMapRemeasAver WSA Averaged RMS of axes of ellipse fit real 4 pixels src.morph.param

gauSig lasMapRemeasurement WSA RMS of axes of ellipse fit {catalogue TType keyword: Gaussian_sigma} real 4 pixels src.morph.param

Derived from the maximum and minimum spatial RMS of the object profile along any direction, ie. 0.5*(A_IMAGE² + B_IMAGE²)^½

gauSig ptsDetection WSATransit RMS of axes of ellipse fit {catalogue TType keyword: Gaussian_sigma} real 4 pixels MORPH_PARAM

These are derived from the three general intensity-weighted second moments. The equivalence between them and a generalised elliptical Gaussian Distribution is used to derive Gaussian sigma = (σ_a²+σ_b²)^½

gauSig udsDetection WSA RMS of axes of ellipse fit {catalogue TType keyword: Gaussian_sigma} real 4 pixels MORPH_PARAM

Derived from the maximum and minimum spatial RMS of the object profile along any direction, ie. 0.5*(A_IMAGE² + B_IMAGE²)^½

gauSig uhsDetection, uhsDetectionAll WSAUHS RMS of axes of ellipse fit {catalogue TType keyword: Gaussian_sigma} real 4 pixels MORPH_PARAM

These are derived from the three general intensity-weighted second moments. The equivalence between them and a generalised elliptical Gaussian Distribution is used to derive Gaussian sigma = (σ_a²+σ_b²)^½

gcnf twomass_sixx2_psc, twomass_sixx2_xsc 2MASS Group confusion flag 0=not confused or single apparation, 1=confused smallint 2

gcntr twomass_sixx2_psc, twomass_sixx2_xsc 2MASS A unique identifier for the merged group of apparitions of this source int 4

gdec StackObjectThin PS1DR2 Declination from g filter stack detection. float 8 degrees -999

gdecErr StackObjectThin PS1DR2 Declination error from g filter stack detection. real 4 arcsec -999

gEpoch StackObjectThin PS1DR2 Modified Julian Date of the mean epoch of images contributing to the the g-band stack (equinox J2000). float 8 days -999

gexpTime StackObjectAttributes PS1DR2 Exposure time of the g filter stack. Necessary for converting listed fluxes and magnitudes back to measured ADU counts. real 4 seconds -999

gExtNSigma StackObjectAttributes PS1DR2 An extendedness measure for the g filter stack detection based on the deviation between PSF and Kron (1980) magnitudes, normalized by the PSF magnitude uncertainty. real 4 -999

gFlags MeanObject PS1DR2 Information flag bitmask for mean object from g filter detections. Values listed in ObjectFilterFlags. int 4 0

ginfoFlag StackObjectThin PS1DR2 Information flag bitmask indicating details of the g filter stack photometry. Values listed in DetectionFlags. bigint 8 0

ginfoFlag2 StackObjectThin PS1DR2 Information flag bitmask indicating details of the g filter stack photometry. Values listed in DetectionFlags2. int 4 0

ginfoFlag3 StackObjectThin PS1DR2 Information flag bitmask indicating details of the g filter stack photometry. Values listed in DetectionFlags3. int 4 0

gippDetectID StackObjectAttributes, StackObjectThin PS1DR2 IPP internal detection identifier. bigint 8

gKronFlux StackObjectAttributes PS1DR2 Kron (1980) flux from g filter stack detection. real 4 Janskys -999

gKronFluxErr StackObjectAttributes PS1DR2 Error in Kron (1980) flux from g filter stack detection. real 4 Janskys -999

gKronMag StackObjectThin PS1DR2 Kron (1980) magnitude from g filter stack detection. real 4 AB magnitudes -999

gKronMagErr StackObjectThin PS1DR2 Error in Kron (1980) magnitude from g filter stack detection. real 4 AB magnitudes -999

gKronRad StackObjectAttributes PS1DR2 Kron (1980) radius from g filter stack detection. real 4 arcsec -999

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

glat catwise_2020, catwise_prelim WISE galactic latitude float 8 deg

glat twomass_psc 2MASS Galactic latitude rounded to 0.001 deg. real 4 degrees POS_GAL_LAT

glat twomass_scn 2MASS Galactic latitude of scan center, as computed from ra and dec above. real 4 degrees POS_GAL_LAT

glat twomass_sixx2_scn 2MASS galactic latitude (decimal deg) of scan center float 8 deg

glat twomass_xsc 2MASS Galactic latitude (decimal deg) based on peak pixel. real 4 degrees POS_GAL_LAT

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

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

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

glon catwise_2020, catwise_prelim WISE galactic longitude float 8 deg

glon twomass_psc 2MASS Galactic longitude rounded to 0.001 deg. real 4 degrees POS_GAL_LON

glon twomass_scn 2MASS Galactic longitude of scan center, as computed from ra and dec above. real 4 degrees POS_GAL_LON

glon twomass_sixx2_scn 2MASS galactic longitude (decimal deg) of scan center float 8 deg

glon twomass_xsc 2MASS Galactic longitude (decimal deg) based on peak pixel. real 4 degrees POS_GAL_LON

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

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

gMeanApMag MeanObject PS1DR2 Mean aperture magnitude from g filter detections. real 4 AB magnitudes -999

gMeanApMagErr MeanObject PS1DR2 Error in mean aperture magnitude from g filter detections. real 4 AB magnitudes -999

gMeanApMagNpt MeanObject PS1DR2 Number of measurements included in mean aperture magnitude from g filter detections. smallint 2 -999

gMeanApMagStd MeanObject PS1DR2 Standard deviation of aperture magnitudes from g filter detections. real 4 AB magnitudes -999

gMeanKronMag MeanObject PS1DR2 Mean Kron (1980) magnitude from g filter detections. real 4 AB magnitudes -999

gMeanKronMagErr MeanObject PS1DR2 Error in mean Kron (1980) magnitude from g filter detections. real 4 AB magnitudes -999

gMeanKronMagNpt MeanObject PS1DR2 Number of measurements included in mean Kron (1980) magnitude from g filter detections. smallint 2 -999

gMeanKronMagStd MeanObject PS1DR2 Standard deviation of Kron (1980) magnitudes from g filter detections. real 4 AB magnitudes -999

gMeanPSFMag MeanObject PS1DR2 Mean PSF magnitude from g filter detections. real 4 AB magnitudes -999

gMeanPSFMagErr MeanObject PS1DR2 Error in mean PSF magnitude from g filter detections. real 4 AB magnitudes -999

gMeanPSFMagMax MeanObject PS1DR2 Maximum PSF magnitude from g filter detections. real 4 AB magnitudes -999

gMeanPSFMagMin MeanObject PS1DR2 Minimum PSF magnitude from g filter detections. real 4 AB magnitudes -999

gMeanPSFMagNpt MeanObject PS1DR2 Number of measurements included in mean PSF magnitude from g filter detections. smallint 2 -999

gMeanPSFMagStd MeanObject PS1DR2 Standard deviation of PSF magnitudes from g filter detections. real 4 AB magnitudes -999

gmomentR1 StackObjectAttributes PS1DR2 First radial moment for g filter stack detection. real 4 arcsec -999

gmomentRH StackObjectAttributes PS1DR2 Half radial moment (r^0.5 weighting) for g filter stack detection. real 4 arcsec^0.5 -999

gmomentXX StackObjectAttributes PS1DR2 Second moment M_xx for g filter stack detection. real 4 arcsec^2 -999

gmomentXY StackObjectAttributes PS1DR2 Second moment M_xy for g filter stack detection. real 4 arcsec^2 -999

gmomentYY StackObjectAttributes PS1DR2 Second moment M_yy for g filter stack detection. real 4 arcsec^2 -999

gnFrames StackObjectThin PS1DR2 Number of input frames/exposures contributing to the g filter stack detection. int 4 -999

gPlateScale StackObjectAttributes PS1DR2 Local plate scale for the g filter stack. real 4 arcsec/pixel 0

gpsEnd Multiframe WSA Date and time (UTC) of end of the observation from GPS data {image primary HDU keyword: GPS-END} datetime 8 12-31-9999 time.epoch

gpsEnd Multiframe WSACalib Date and time (UTC) of end of the observation from GPS data {image primary HDU keyword: GPS-END} datetime 8 12-31-9999 time.epoch

gpsEnd Multiframe WSATransit Date and time (UTC) of end of the observation from GPS data {image primary HDU keyword: GPS-END} datetime 8 12-31-9999 time.epoch

gpsEnd Multiframe WSAUHS Date and time (UTC) of end of the observation from GPS data {image primary HDU keyword: GPS-END} datetime 8 12-31-9999 time.epoch

gpsfChiSq StackObjectAttributes PS1DR2 Reduced chi squared value of the PSF model fit for g filter stack detection. real 4 -999

gpsfCore StackObjectAttributes PS1DR2 PSF core parameter k from g filter stack detection, where F = F0 / (1 + k r^2 + r^3.33). real 4 -999

gPSFFlux StackObjectAttributes PS1DR2 PSF flux from g filter stack detection. real 4 Janskys -999

gPSFFluxErr StackObjectAttributes PS1DR2 Error in PSF flux from g filter stack detection. real 4 Janskys -999

gpsfLikelihood StackObjectAttributes PS1DR2 Likelihood that this g filter stack detection is best fit by a PSF. real 4 -999

gPSFMag StackObjectThin PS1DR2 PSF magnitude from g filter stack detection. real 4 AB magnitudes -999

gPSFMagErr StackObjectThin PS1DR2 Error in PSF magnitude from g filter stack detection. real 4 AB magnitudes -999

gpsfMajorFWHM StackObjectAttributes PS1DR2 PSF major axis FWHM from g filter stack detection. real 4 arcsec -999

gpsfMinorFWHM StackObjectAttributes PS1DR2 PSF minor axis FWHM from g filter stack detection. real 4 arcsec -999

gpsfQf StackObjectAttributes PS1DR2 PSF coverage factor for g filter stack detection. real 4 -999

gpsfQfPerfect StackObjectAttributes PS1DR2 PSF-weighted fraction of pixels totally unmasked for g filter stack detection. real 4 -999

gpsfTheta StackObjectAttributes PS1DR2 PSF major axis orientation from g filter stack detection. real 4 degrees -999

gpsObs Multiframe WSA Date and time (UTC) of start of the observation from GPS data {image primary HDU keyword: GPS-OBS} datetime 8 12-31-9999 time.epoch

gpsObs Multiframe WSACalib Date and time (UTC) of start of the observation from GPS data {image primary HDU keyword: GPS-OBS} datetime 8 12-31-9999 time.epoch

gpsObs Multiframe WSATransit Date and time (UTC) of start of the observation from GPS data {image primary HDU keyword: GPS-OBS} datetime 8 12-31-9999 time.epoch

gpsObs Multiframe WSAUHS Date and time (UTC) of start of the observation from GPS data {image primary HDU keyword: GPS-OBS} datetime 8 12-31-9999 time.epoch

gQfPerfect MeanObject PS1DR2 Maximum PSF weighted fraction of pixels totally unmasked from g filter detections. real 4 -999

gra StackObjectThin PS1DR2 Right ascension from g filter stack detection. float 8 degrees -999

graErr StackObjectThin PS1DR2 Right ascension error from g filter stack detection. real 4 arcsec -999

grpMem Multiframe WSA Group membership (0=F, 1=T) {image primary HDU keyword: GRPMEM} tinyint 1 0 CODE_MEM

grpMem Multiframe WSACalib Group membership (0=F, 1=T) {image primary HDU keyword: GRPMEM} tinyint 1 0 CODE_MEM

grpMem Multiframe WSATransit Group membership (0=F, 1=T) {image primary HDU keyword: GRPMEM} tinyint 1 0 CODE_MEM

grpMem Multiframe WSAUHS Group membership (0=F, 1=T) {image primary HDU keyword: GRPMEM} tinyint 1 0 CODE_MEM

grpNum Multiframe WSA Group number applied to all members {image primary HDU keyword: GRPNUM} int 4 -99999999 meta.number

grpNum Multiframe WSACalib Group number applied to all members {image primary HDU keyword: GRPNUM} int 4 -99999999 meta.number

grpNum Multiframe WSATransit Group number applied to all members {image primary HDU keyword: GRPNUM} int 4 -99999999 meta.number

grpNum Multiframe WSAUHS Group number applied to all members {image primary HDU keyword: GRPNUM} int 4 -99999999 meta.number

gsc2Class first08Jul16Source FIRST morphological classification in GSC-2 version 2.3.2 (s=stellar, g=nonstellar/galaxy) varchar 1

gsc2Mag first08Jul16Source FIRST GSC2 F magnitude real 4 mag

gsc2Matches first08Jul16Source FIRST number of matches within a fiducial radius (10 arcsec) with GSC-2 version 2.3.2 int 4

gsc2Sep first08Jul16Source FIRST separation of the nearest match in GSC-2 version 2.3.2 from the FIRST position real 4 arcsec

gsDec Multiframe WSA Declination of guide star {image primary HDU keyword: GSDEC} float 8 degrees -0.9999995e9 pos.eq.dec;meta.main

gsDec Multiframe WSACalib Declination of guide star {image primary HDU keyword: GSDEC} float 8 degrees -0.9999995e9 pos.eq.dec;meta.main

gsDec Multiframe WSATransit Declination of guide star {image primary HDU keyword: GSDEC} float 8 degrees -0.9999995e9 pos.eq.dec;meta.main

gsDec Multiframe WSAUHS Declination of guide star {image primary HDU keyword: GSDEC} float 8 degrees -0.9999995e9 pos.eq.dec;meta.main

gsky StackObjectAttributes PS1DR2 Residual background sky level at the g filter stack detection. real 4 Janskys/arcsec^2 -999

gskyErr StackObjectAttributes PS1DR2 Error in residual background sky level at the g filter stack detection. real 4 Janskys/arcsec^2 -999

gsRa Multiframe WSA Right ascension of guide star {image primary HDU keyword: GSRA} float 8 hours -0.9999995e9 pos.eq.ra;meta.main

gsRa Multiframe WSACalib Right ascension of guide star {image primary HDU keyword: GSRA} float 8 hours -0.9999995e9 pos.eq.ra;meta.main

gsRa Multiframe WSATransit Right ascension of guide star {image primary HDU keyword: GSRA} float 8 hours -0.9999995e9 pos.eq.ra;meta.main

gsRa Multiframe WSAUHS Right ascension of guide star {image primary HDU keyword: GSRA} float 8 hours -0.9999995e9 pos.eq.ra;meta.main

gstackDetectID StackObjectAttributes, StackObjectThin PS1DR2 Unique stack detection identifier. bigint 8

gstackImageID StackObjectAttributes, StackObjectThin PS1DR2 Unique stack identifier for g filter detection. bigint 8

guiding Multiframe WSA Guider status (OFF|ON|PAUSED) {image primary HDU keyword: GUIDING} varchar 10 NONE

guiding Multiframe WSACalib Guider status (OFF|ON|PAUSED) {image primary HDU keyword: GUIDING} varchar 10 NONE

guiding Multiframe WSATransit Guider status (OFF|ON|PAUSED) {image primary HDU keyword: GUIDING} varchar 10 NONE

guiding Multiframe WSAUHS Guider status (OFF|ON|PAUSED) {image primary HDU keyword: GUIDING} varchar 10 NONE

gxPos StackObjectAttributes PS1DR2 PSF x center location from g filter stack detection. real 4 sky pixels -999

gxPosErr StackObjectAttributes PS1DR2 Error in PSF x center location from g filter stack detection. real 4 sky pixels -999

gyPos StackObjectAttributes PS1DR2 PSF y center location from g filter stack detection. real 4 sky pixels -999

gyPosErr StackObjectAttributes PS1DR2 Error in PSF y center location from g filter stack detection. real 4 sky pixels -999

gzp StackObjectAttributes PS1DR2 Photometric zeropoint for the g filter stack. Necessary for converting listed fluxes and magnitudes back to measured ADU counts. real 4 magnitudes 0

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

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