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Glossary of WSA attributes
This Glossary alphabetically lists all attributes used in the UKIDSSDR8 database(s) held in the WSA. If you would like to have more information about the schema tables please use the UKIDSSDR8 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	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	??
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
gauSig	UKIDSSDetection	WSA	RMS of axes of ellipse fit	real	4	pixels		MORPH_PARAM
gauSig	calDetection, calListRemeasurement	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 = (σa²+σb²)½
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. 0.5*(A_IMAGE² + B_IMAGE²)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
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
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
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
grpNum	Multiframe	WSA	Group number applied to all members {image primary HDU keyword: GRPNUM}	int	4		-99999999	NUMBER
grpNum	Multiframe	WSACalib	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
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_MAIN
gsDec	Multiframe	WSACalib	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	WSACalib	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	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