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Glossary of WSA attributes

This Glossary alphabetically lists all attributes used in the UKIDSSDR9 database(s) held in the WSA. If you would like to have more information about the schema tables please use the UKIDSSDR9 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

X

NameSchema TableDatabaseDescriptionTypeLengthUnitDefault ValueUnified Content Descriptor
x UKIDSSDetection WSA X coordinate of detection real 4 pixels   POS_PLATE_X
x calDetection, calListRemeasurement WSACalib X coordinate of detection {catalogue TType keyword: X_coordinate}
Intensity-weighted isophotal centre-of-gravity in X.
real 4 pixels   POS_PLATE_X
x dxsDetection, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsListRemeasurement WSA X coordinate of detection {catalogue TType keyword: X_coordinate}
Intensity-weighted isophotal centre-of-gravity in X.
real 4 pixels   POS_PLATE_X
x ptsDetection WSATransit X coordinate of detection {catalogue TType keyword: X_coordinate}
Intensity-weighted isophotal centre-of-gravity in X.
real 4 pixels   POS_PLATE_X
x udsDetection WSA X coordinate of detection (SE: X_IMAGE) {catalogue TType keyword: X_coordinate}
Intensity-weighted isophotal centre-of-gravity in X.
real 4 pixels   POS_PLATE_X
x_coadd twomass_xsc 2MASS x (cross-scan) position (coadd coord.). real 4 arcsec   INST_POS
X_IMAGE mgcDetection MGC Object x position real 4 pixel    
X_OFF mgcGalaxyStruct MGC X offset of Galaxy Centre real 4   99.99  
X_OFFm mgcGalaxyStruct MGC X offset error (-) real 4   99.99  
X_OFFp mgcGalaxyStruct MGC X offset error (+) real 4   99.99  
x_scan twomass_psc 2MASS Mean cross-scan focal plane position of the source in the Universal scan (U-scan) coordinate system. real 4 arcsec   INST_POS
xErr UKIDSSDetection WSA Error in X coordinate real 4 pixels   ERROR
xErr calDetection, calListRemeasurement WSACalib Error in X coordinate {catalogue TType keyword: X_coordinate_err}
Estimate of centroid error.
real 4 pixels   ERROR
xErr dxsDetection, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsListRemeasurement WSA Error in X coordinate {catalogue TType keyword: X_coordinate_err}
Estimate of centroid error.
real 4 pixels   ERROR
xErr ptsDetection WSATransit Error in X coordinate {catalogue TType keyword: X_coordinate_err}
Estimate of centroid error.
real 4 pixels   ERROR
xErr udsDetection WSA Error in X coordinate (SE: ERRX2_IMAGE½) {catalogue TType keyword: X_coordinate_err}
Estimate of centroid error.
real 4 pixels   ERROR
xifitrms dxsAstrometricInfo, udsAstrometricInfo WSA RMS errors in fit for xi float 8 arcsec -0.9999995e9 ??
xisc dxsAstrometricInfo, udsAstrometricInfo WSA Scale factor in xi float 8   -0.9999995e9 ??
xizp dxsAstrometricInfo, udsAstrometricInfo WSA Zeropoint offset in xi float 8 arcsec -0.9999995e9 ??
xnfitrms dxsAstrometricInfo, udsAstrometricInfo WSA RMS errors in fit for xn float 8 arcsec -0.9999995e9 ??
xnsc dxsAstrometricInfo, udsAstrometricInfo WSA Scale factor in xn float 8   -0.9999995e9 ??
xnzp dxsAstrometricInfo, udsAstrometricInfo WSA Zeropoint offset in xn float 8 arcsec -0.9999995e9 ??
xph twomass_scn 2MASS Special flag indicating whether or not another photometric problem, not obviously cloud related, was found in the scan after comparing its photometry to that of overlapping scans. smallint 2     CODE_MISC
xph twomass_sixx2_scn 2MASS downgrade from DB photom. overlap compar. (non-cloud) (0|1) smallint 2      
xPixSize CurrentAstrometry WSACalib Angular size of pixels in X real 4 Arcseconds -0.9999995e9 POS_ANG_DIST_GENERAL
xPixSize CurrentAstrometry WSATransit Angular size of pixels in X real 4 Arcseconds -0.9999995e9 POS_ANG_DIST_GENERAL
xPixSize CurrentAstrometry, PreviousAstrometry WSA Angular size of pixels in X real 4 Arcseconds -0.9999995e9 POS_ANG_DIST_GENERAL
xPos nvssSource NVSS X position (RA direction) of the radio source real 4 pixels   POS_CCD_X
xscprox wise_prelimsc WISE Distance between the WISE source position and the position of a nearby 2MASS XSC source, if the separation is less than 1.1 times the Ks isophotal radius size of the XSC source
This column is default if there is no 2MASS XSC source in proximity to the WISE source
real 4 arcsec -0.9999995e9  
xSize MultiframeDetector WSA Corresponding image size (X); value only available if catalogue file exists {catalogue extension keyword:  NXOUT} int 4   -99999999 NUMBER
xSize MultiframeDetector WSACalib Corresponding image size (X); value only available if catalogue file exists {catalogue extension keyword:  NXOUT} int 4   -99999999 NUMBER
xSize MultiframeDetector WSATransit Corresponding image size (X); value only available if catalogue file exists {catalogue extension keyword:  NXOUT} int 4   -99999999 NUMBER
xTalkFlag MultiframeDetector WSA Xtalk flag, set if xtalk check has been done. {image extension keyword: XTALK} varchar 32   NONE  
xTalkFlag MultiframeDetector WSACalib Xtalk flag, set if xtalk check has been done. {image extension keyword: XTALK} varchar 32   NONE  
xTalkFlag MultiframeDetector WSATransit Xtalk flag, set if xtalk check has been done. {image extension keyword: XTALK} varchar 32   NONE  



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04/04/2012