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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
Name	Schema Table	Database	Description	Type	Length	Unit	Default Value	Unified 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