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** Announcement - Workshop: Science from UKIDSS II, 15-17 Dec 2008, London UK **
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Glossary of WSA attributes

This Glossary alphabetically lists all attributes used in the UKIDSSDR2 database(s) held in the WSA. If you would like to have more information about the schema tables please use the UKIDSSDR2 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

NameSchema TableDatabaseDescriptionTypeLengthUnitDefault ValueUnified Content Descriptor
g_score twomass_xsc 2MASS galaxy score: 1(extended) < g_score < 2(point-like). real 4     CODE_MISC
gain MultiframeDetector WSA 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 ??
gal_contam twomass_psc 2MASS Extended source "contamination" flag. smallint 2     CODE_MISC
galGrad Plate SSA Gradient of galaxy instrumental mag scale float 8 mags per instrumental mag   FIT_PARAM_VALUE
galZp Plate SSA Zeropoint of galaxy instrumental scale float 8 mag   PHOT_ZPT
gauSig UKIDSSDetection WSA RMS of axes of ellipse fit real 4 pixels   MORPH_PARAM
gauSig dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsListRemeasurement 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 = (σa²+σb²)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 = (σa²+σb²)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. (A_IMAGE² + B_IMAGE²)½
gCorMagB CompleteStars, ReliableGalaxies, ReliableStars, Source SSA B band magnitude assuming object is galaxy real 4 mag -99.999995 PHOT_PHG_BJ
gCorMagI CompleteStars, ReliableGalaxies, ReliableStars, Source SSA I band magnitude assuming object is galaxy real 4 mag -99.999995 PHOT_PHG_I
gCorMagR1 CompleteStars, ReliableGalaxies, ReliableStars, Source SSA R1 band magnitude assuming object is galaxy real 4 mag -99.999995 PHOT_PHG_R
gCorMagR2 CompleteStars, ReliableGalaxies, ReliableStars, Source SSA R2 band magnitude assuming object is galaxy real 4 mag -99.999995 PHOT_PHG_R
getCal1 Plate SSA 1st profile calibration polynomial coefficient float 8     FIT_PARAM_VALUE
getCal2 Plate SSA 2nd profile calibration polynomial coefficient float 8     FIT_PARAM_VALUE
getCal3 Plate SSA 3rd profile calibration polynomial coefficient float 8     FIT_PARAM_VALUE
getCal4 Plate SSA 4th profile calibration polynomial coefficient float 8     FIT_PARAM_VALUE
getCal5 Plate SSA 5th profile calibration polynomial coefficient float 8     FIT_PARAM_VALUE
getCal6 Plate SSA 6th profile calibration polynomial coefficient float 8     FIT_PARAM_VALUE
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_xsc 2MASS Galactic latitude (decimal deg) based on peak pixel. real 4 degrees   POS_GAL_LAT
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_xsc 2MASS Galactic longitude (decimal deg) based on peak pixel. real 4 degrees   POS_GAL_LON
gMag Detection SSA Magnitude calculated on assumption object is galaxy real 4 mag   MODEL_MAG_VALUE
gradient Plate SSA Gradient of linear portion of profile cal. curve real 4     FIT_PARAM_VALUE
grpMem Multiframe WSA 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
grpNum Multiframe WSA Group number applied to all members {image primary HDU keyword: GRPNUM} int 4   -99999999 NUMBER
grpNum Multiframe WSATransit Group number applied to all members {image primary HDU keyword: GRPNUM} int 4   -99999999 NUMBER
gsDec Multiframe WSA Declination of guide star {image primary HDU keyword: GSDEC} float 8 degrees -0.9999995e9 POS_EQ_DEC_MAIN
gsDec Multiframe WSATransit Declination of guide star {image primary HDU keyword: GSDEC} float 8 degrees -0.9999995e9 POS_EQ_DEC_MAIN
gsRa Multiframe WSA Right ascension of guide star {image primary HDU keyword: GSRA} float 8 hours -0.9999995e9 POS_EQ_RA_MAIN
gsRa Multiframe WSATransit Right ascension of guide star {image primary HDU keyword: GSRA} float 8 hours -0.9999995e9 POS_EQ_RA_MAIN
guiding Multiframe WSA 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  



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