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Glossary of WSA NonSurvey attributes (UKIDSSR2)
This Glossary alphabetically lists all attributes used in the WSA NonSurvey database(s) held in the WSA. If you would like to have more information about the schema tables please use the Schema Browser (other Browser versions).

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

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T

U

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W

X

Y

Z

H
Name	Schema Table	Database	Description	Type	Length	Unit	Default Value	Unified Content Descriptor
h2AperMag3	[nspid]Source	WSA NonSurvey	Extended source H2 mag (2.0 arcsec aperture diameter)	real	4	mag	-0.9999995e9	PHOT_MAG
h2AperMag3Err	[nspid]Source	WSA NonSurvey	Error in extended source H2 mag (2.0 arcsec aperture diameter)	real	4	mag	-0.9999995e9	ERROR
h2AperMag4	[nspid]Source	WSA NonSurvey	Extended source H2 mag (2.8 arcsec aperture diameter)	real	4	mag	-0.9999995e9	PHOT_MAG
h2AperMag4Err	[nspid]Source	WSA NonSurvey	Error in extended source H2 mag (2.8 arcsec aperture diameter)	real	4	mag	-0.9999995e9	ERROR
h2AperMag6	[nspid]Source	WSA NonSurvey	Extended source H2 mag (5.7 arcsec aperture diameter)	real	4	mag	-0.9999995e9	PHOT_MAG
h2AperMag6Err	[nspid]Source	WSA NonSurvey	Error in extended source H2 mag (5.7 arcsec aperture diameter)	real	4	mag	-0.9999995e9	ERROR
h2Class	[nspid]Source	WSA NonSurvey	discrete image classification flag in H2	smallint	2		-9999	CLASS_MISC
h2ClassStat	[nspid]Source	WSA NonSurvey	N(0,1) stellarness-of-profile statistic in H2	real	4		-0.9999995e9	STAT_PROP
h2Deblend	[nspid]Source	WSA NonSurvey	flag indicating parent/child relation in H2	int	4		-99999999	CODE_MISC
h2Ell	[nspid]Source	WSA NonSurvey	1-b/a, where a/b=semi-major/minor axes in H2	real	4		-0.9999995e9	PHYS_ELLIPTICITY
h2eNum	[nspid]MergeLog	WSA NonSurvey	the extension number of this H2 detector	tinyint	1			NUMBER
h2ErrBits	[nspid]Source	WSA NonSurvey	processing warning/error bitwise flags in H2	int	4		-99999999	CODE_MISC
h2Eta	[nspid]Source	WSA NonSurvey	Offset of H2 detection from master position (+north/-south)	real	4	arcsec	-0.9999995e9	POS_EQ_DEC_OFF
			When associating individual passband detections into merged sources, a generous (in terms of the positional uncertainties) pairing radius of typically 5 arcseconds is used, enabling pairing of moving sources when epoch separations may be several years. Such a large association criterion can of course lead to spurious pairings in the merged sources lists (although note that between passband pairs, handshake pairing is done: both passbands must agree that the candidate pair is their nearest neighbour for the pair to propagate through into the merged source table). In order to help filter spurious pairings out, and assuming that large positional offsets between the different passband detections are not expected (e.g. because of source motion, or larger than usual positional uncertainties) then the attributes Xi and Eta can be used to filter any pairings with suspiciously large offsets in one or more bands. For example, for a clean sample of QSOs, you might wish to insist that the offsets in the selected sample are all below 1 arcsecond: simply add WHERE clauses into the SQL sample selection script to exclude all Xi and Eta values larger than the threshold you want.
h2Gausig	[nspid]Source	WSA NonSurvey	RMS of axes of ellipse fit in H2	real	4	pixels	-0.9999995e9	MORPH_PARAM
h2HallMag	[nspid]Source	WSA NonSurvey	Point source H2 mag	real	4	mag	-0.9999995e9	PHOT_MAG
h2HallMagErr	[nspid]Source	WSA NonSurvey	Error in point source H2 mag	real	4	mag	-0.9999995e9	ERROR
h2mfID	[nspid]MergeLog	WSA NonSurvey	the UID of the relevant H2 multiframe	bigint	8			ID_FRAME
h2ObjID	[nspid]Source	WSA NonSurvey	the UID of the H2 detection	bigint	8		-99999999	ID_NUMBER
h2PA	[nspid]Source	WSA NonSurvey	ellipse fit celestial orientation in H2	real	4	Degrees	-0.9999995e9	POS_POS-ANG
h2PetroMag	[nspid]Source	WSA NonSurvey	Extended source H2 mag (Petrosian)	real	4	mag	-0.9999995e9	PHOT_MAG
h2PetroMagErr	[nspid]Source	WSA NonSurvey	Error in extended source H2 mag (Petrosian)	real	4	mag	-0.9999995e9	ERROR
h2ppErrBits	[nspid]Source	WSA NonSurvey	additional WFAU post-processing error bits in H2	int	4		-99999999	CODE_MISC
h2PsfMag	[nspid]Source	WSA NonSurvey	Point source profile-fitted H2 mag	real	4	mag	-0.9999995e9	PHOT_MAG
h2PsfMagErr	[nspid]Source	WSA NonSurvey	Error in point source profile-fitted H2 mag	real	4	mag	-0.9999995e9	ERROR
h2SeqNum	[nspid]Source	WSA NonSurvey	the running number of the H2 detection	int	4		-99999999	ID_NUMBER
h2SerMag2D	[nspid]Source	WSA NonSurvey	Extended source H2 mag (profile-fitted)	real	4	mag	-0.9999995e9	PHOT_MAG
h2SerMag2DErr	[nspid]Source	WSA NonSurvey	Error in extended source H2 mag (profile-fitted)	real	4	mag	-0.9999995e9	ERROR
h2Xi	[nspid]Source	WSA NonSurvey	Offset of H2 detection from master position (+east/-west)	real	4	arcsec	-0.9999995e9	POS_EQ_RA_OFF
			When associating individual passband detections into merged sources, a generous (in terms of the positional uncertainties) pairing radius of typically 5 arcseconds is used, enabling pairing of moving sources when epoch separations may be several years. Such a large association criterion can of course lead to spurious pairings in the merged sources lists (although note that between passband pairs, handshake pairing is done: both passbands must agree that the candidate pair is their nearest neighbour for the pair to propagate through into the merged source table). In order to help filter spurious pairings out, and assuming that large positional offsets between the different passband detections are not expected (e.g. because of source motion, or larger than usual positional uncertainties) then the attributes Xi and Eta can be used to filter any pairings with suspiciously large offsets in one or more bands. For example, for a clean sample of QSOs, you might wish to insist that the offsets in the selected sample are all below 1 arcsecond: simply add WHERE clauses into the SQL sample selection script to exclude all Xi and Eta values larger than the threshold you want.
hallFlux	[nspid]Detection	WSA NonSurvey	flux within circular aperture to k × r_h; k = 5; alternative total flux {catalogue TType keyword: Hall_flux}	real	4	ADU		PHOT_INTENSITY_ADU
hallFluxErr	[nspid]Detection	WSA NonSurvey	error on Hall flux {catalogue TType keyword: Hall_flux_err}	real	4	ADU		ERROR
hallMag	[nspid]Detection	WSA NonSurvey	Calibrated magnitude within circular aperture r_hall	real	4	mag		PHOT_INT-MAG
hallMagErr	[nspid]Detection	WSA NonSurvey	Calibrated error on Hall magnitude	real	4	mag		ERROR
hallRad	[nspid]Detection	WSA NonSurvey	r_h image scale radius eg. Hall & Mackay 1984 MNRAS 210 979 {catalogue TType keyword: Hall_radius}	real	4	pixels		EXTENSION_RAD
hAperMag3	[nspid]Source	WSA NonSurvey	Extended source H mag (2.0 arcsec aperture diameter)	real	4	mag	-0.9999995e9	PHOT_MAG
hAperMag3Err	[nspid]Source	WSA NonSurvey	Error in extended source H mag (2.0 arcsec aperture diameter)	real	4	mag	-0.9999995e9	ERROR
hAperMag4	[nspid]Source	WSA NonSurvey	Extended source H mag (2.8 arcsec aperture diameter)	real	4	mag	-0.9999995e9	PHOT_MAG
hAperMag4Err	[nspid]Source	WSA NonSurvey	Error in extended source H mag (2.8 arcsec aperture diameter)	real	4	mag	-0.9999995e9	ERROR
hAperMag6	[nspid]Source	WSA NonSurvey	Extended source H mag (5.7 arcsec aperture diameter)	real	4	mag	-0.9999995e9	PHOT_MAG
hAperMag6Err	[nspid]Source	WSA NonSurvey	Error in extended source H mag (5.7 arcsec aperture diameter)	real	4	mag	-0.9999995e9	ERROR
hClass	[nspid]Source	WSA NonSurvey	discrete image classification flag in H	smallint	2		-9999	CLASS_MISC
hClassStat	[nspid]Source	WSA NonSurvey	N(0,1) stellarness-of-profile statistic in H	real	4		-0.9999995e9	STAT_PROP
hDeblend	[nspid]Source	WSA NonSurvey	flag indicating parent/child relation in H	int	4		-99999999	CODE_MISC
hdtFile	[nspid]Multiframe	WSA NonSurvey	Name of global hdt file {image primary HDU keyword: HDTFILE}	varchar	32		NONE
hdtFileExt	[nspid]MultiframeDetector	WSA NonSurvey	Name of camera-specific hdt file {image extension keyword: HDTFILE2}	varchar	32		NONE	??
hEll	[nspid]Source	WSA NonSurvey	1-b/a, where a/b=semi-major/minor axes in H	real	4		-0.9999995e9	PHYS_ELLIPTICITY
heNum	[nspid]MergeLog	WSA NonSurvey	the extension number of this H detector	tinyint	1			NUMBER
hErrBits	[nspid]Source	WSA NonSurvey	processing warning/error bitwise flags in H	int	4		-99999999	CODE_MISC
hEta	[nspid]Source	WSA NonSurvey	Offset of H detection from master position (+north/-south)	real	4	arcsec	-0.9999995e9	POS_EQ_DEC_OFF
			When associating individual passband detections into merged sources, a generous (in terms of the positional uncertainties) pairing radius of typically 5 arcseconds is used, enabling pairing of moving sources when epoch separations may be several years. Such a large association criterion can of course lead to spurious pairings in the merged sources lists (although note that between passband pairs, handshake pairing is done: both passbands must agree that the candidate pair is their nearest neighbour for the pair to propagate through into the merged source table). In order to help filter spurious pairings out, and assuming that large positional offsets between the different passband detections are not expected (e.g. because of source motion, or larger than usual positional uncertainties) then the attributes Xi and Eta can be used to filter any pairings with suspiciously large offsets in one or more bands. For example, for a clean sample of QSOs, you might wish to insist that the offsets in the selected sample are all below 1 arcsecond: simply add WHERE clauses into the SQL sample selection script to exclude all Xi and Eta values larger than the threshold you want.
hGausig	[nspid]Source	WSA NonSurvey	RMS of axes of ellipse fit in H	real	4	pixels	-0.9999995e9	MORPH_PARAM
hHallMag	[nspid]Source	WSA NonSurvey	Point source H mag	real	4	mag	-0.9999995e9	PHOT_MAG
hHallMagErr	[nspid]Source	WSA NonSurvey	Error in point source H mag	real	4	mag	-0.9999995e9	ERROR
hmfID	[nspid]MergeLog	WSA NonSurvey	the UID of the relevant H multiframe	bigint	8			ID_FRAME
hmkExt	[nspid]Source	WSA NonSurvey	Extended source colour H-K	real	4	mag	-0.9999995e9	PHOT_COLOR
			Default colours from pairs of adjacent passbands within a given set (e.g. Y-J, J-H and H-K for YJHK) are recorded in the merged source table for ease of querying and speedy querying via indexing of these attributes. Presently, the point-source colours are computed from the seeing-matched aperture measure (the "Hall" magnitude) while the extended source colours are computed from the fixed 2 arcsec aperture diameter measures (for consistent measurement across all passbands). At some point in the future, this may be changed such that point-source colours will be computed from the PSF-fitted measures and extended source colours computed from the 2-d Sersic model profile fits.
hmkExtErr	[nspid]Source	WSA NonSurvey	Error on extended source colour H-K	real	4	mag	-0.9999995e9	ERROR
			Default colours from pairs of adjacent passbands within a given set (e.g. Y-J, J-H and H-K for YJHK) are recorded in the merged source table for ease of querying and speedy querying via indexing of these attributes. Presently, the point-source colours are computed from the seeing-matched aperture measure (the "Hall" magnitude) while the extended source colours are computed from the fixed 2 arcsec aperture diameter measures (for consistent measurement across all passbands). At some point in the future, this may be changed such that point-source colours will be computed from the PSF-fitted measures and extended source colours computed from the 2-d Sersic model profile fits.
hmkPnt	[nspid]Source	WSA NonSurvey	Point source colour H-K	real	4	mag	-0.9999995e9	PHOT_COLOR
			Default colours from pairs of adjacent passbands within a given set (e.g. Y-J, J-H and H-K for YJHK) are recorded in the merged source table for ease of querying and speedy querying via indexing of these attributes. Presently, the point-source colours are computed from the seeing-matched aperture measure (the "Hall" magnitude) while the extended source colours are computed from the fixed 2 arcsec aperture diameter measures (for consistent measurement across all passbands). At some point in the future, this may be changed such that point-source colours will be computed from the PSF-fitted measures and extended source colours computed from the 2-d Sersic model profile fits.
hmkPntErr	[nspid]Source	WSA NonSurvey	Error on point source colour H-K	real	4	mag	-0.9999995e9	ERROR
			Default colours from pairs of adjacent passbands within a given set (e.g. Y-J, J-H and H-K for YJHK) are recorded in the merged source table for ease of querying and speedy querying via indexing of these attributes. Presently, the point-source colours are computed from the seeing-matched aperture measure (the "Hall" magnitude) while the extended source colours are computed from the fixed 2 arcsec aperture diameter measures (for consistent measurement across all passbands). At some point in the future, this may be changed such that point-source colours will be computed from the PSF-fitted measures and extended source colours computed from the 2-d Sersic model profile fits.
hObjID	[nspid]Source	WSA NonSurvey	the UID of the H detection	bigint	8		-99999999	ID_NUMBER
hourAngle	[nspid]Multiframe	WSA NonSurvey	Hour angle {image primary HDU keyword: HABASE}	real	4	degrees	-0.9999995e9
hPA	[nspid]Source	WSA NonSurvey	ellipse fit celestial orientation in H	real	4	Degrees	-0.9999995e9	POS_POS-ANG
hPetroMag	[nspid]Source	WSA NonSurvey	Extended source H mag (Petrosian)	real	4	mag	-0.9999995e9	PHOT_MAG
hPetroMagErr	[nspid]Source	WSA NonSurvey	Error in extended source H mag (Petrosian)	real	4	mag	-0.9999995e9	ERROR
hppErrBits	[nspid]Source	WSA NonSurvey	additional WFAU post-processing error bits in H	int	4		-99999999	CODE_MISC
hPsfMag	[nspid]Source	WSA NonSurvey	Point source profile-fitted H mag	real	4	mag	-0.9999995e9	PHOT_MAG
hPsfMagErr	[nspid]Source	WSA NonSurvey	Error in point source profile-fitted H mag	real	4	mag	-0.9999995e9	ERROR
hSeqNum	[nspid]Source	WSA NonSurvey	the running number of the H detection	int	4		-99999999	ID_NUMBER
hSerMag2D	[nspid]Source	WSA NonSurvey	Extended source H mag (profile-fitted)	real	4	mag	-0.9999995e9	PHOT_MAG
hSerMag2DErr	[nspid]Source	WSA NonSurvey	Error in extended source H mag (profile-fitted)	real	4	mag	-0.9999995e9	ERROR
htmID	[nspid]CurrentAstrometry, [nspid]PreviousAstrometry	WSA NonSurvey	HTM index (20 deep) of device centre	bigint	8			POS_GENERAL
htmID	[nspid]Detection	WSA NonSurvey	HTM index (20 digits) for equatorial co-ordinates	bigint	8			POS_GENERAL
htmID	[nspid]MergeLog	WSA NonSurvey	HTM index, 20 digits, for co-ordinates	bigint	8			POS_GENERAL
htmID	[nspid]Source	WSA NonSurvey	HTM index, 20 digits, for co-ordinate	bigint	8			POS_GENERAL
humidity	[nspid]Multiframe	WSA NonSurvey	Relative Humidity {image primary HDU keyword: HUMIDITY}	real	4		-0.9999995e9	OBS_CONDITIONS
hXi	[nspid]Source	WSA NonSurvey	Offset of H detection from master position (+east/-west)	real	4	arcsec	-0.9999995e9	POS_EQ_RA_OFF
			When associating individual passband detections into merged sources, a generous (in terms of the positional uncertainties) pairing radius of typically 5 arcseconds is used, enabling pairing of moving sources when epoch separations may be several years. Such a large association criterion can of course lead to spurious pairings in the merged sources lists (although note that between passband pairs, handshake pairing is done: both passbands must agree that the candidate pair is their nearest neighbour for the pair to propagate through into the merged source table). In order to help filter spurious pairings out, and assuming that large positional offsets between the different passband detections are not expected (e.g. because of source motion, or larger than usual positional uncertainties) then the attributes Xi and Eta can be used to filter any pairings with suspiciously large offsets in one or more bands. For example, for a clean sample of QSOs, you might wish to insist that the offsets in the selected sample are all below 1 arcsecond: simply add WHERE clauses into the SQL sample selection script to exclude all Xi and Eta values larger than the threshold you want.
hz10cd	[nspid]Multiframe	WSA NonSurvey	Trefoil: HZ10CD {image primary HDU keyword: HZ10CD}	real	4		-0.9999995e9
hz10ch	[nspid]Multiframe	WSA NonSurvey	Trefoil: HZ10CH {image primary HDU keyword: HZ10CH}	real	4		-0.9999995e9
hz10sd	[nspid]Multiframe	WSA NonSurvey	Trefoil: HZ10SD {image primary HDU keyword: HZ10SD}	real	4		-0.9999995e9
hz10sh	[nspid]Multiframe	WSA NonSurvey	Trefoil: HZ10SH {image primary HDU keyword: HZ10SH}	real	4		-0.9999995e9
hz5cd	[nspid]Multiframe	WSA NonSurvey	Astigmatism: HZ5CD {image primary HDU keyword: HZ5CD}	real	4		-0.9999995e9
hz5ch	[nspid]Multiframe	WSA NonSurvey	Astigmatism: HZ5CH {image primary HDU keyword: HZ5CH}	real	4		-0.9999995e9
hz5sd	[nspid]Multiframe	WSA NonSurvey	Astigmatism: HZ5SD {image primary HDU keyword: HZ5SD}	real	4		-0.9999995e9
hz5sh	[nspid]Multiframe	WSA NonSurvey	Astigmatism: HZ5SH {image primary HDU keyword: HZ5SH}	real	4		-0.9999995e9
hz6cd	[nspid]Multiframe	WSA NonSurvey	Astigmatism: HZ6CD {image primary HDU keyword: HZ6CD}	real	4		-0.9999995e9
hz6ch	[nspid]Multiframe	WSA NonSurvey	Astigmatism: HZ6CH {image primary HDU keyword: HZ6CH}	real	4		-0.9999995e9
hz6sd	[nspid]Multiframe	WSA NonSurvey	Astigmatism: HZ6SD {image primary HDU keyword: HZ6SD}	real	4		-0.9999995e9
hz6sh	[nspid]Multiframe	WSA NonSurvey	Astigmatism: HZ6SH {image primary HDU keyword: HZ6SH}	real	4		-0.9999995e9
hz9cd	[nspid]Multiframe	WSA NonSurvey	Trefoil: HZ9CD {image primary HDU keyword: HZ9CD}	real	4		-0.9999995e9
hz9ch	[nspid]Multiframe	WSA NonSurvey	Trefoil: HZ9CH {image primary HDU keyword: HZ9CH}	real	4		-0.9999995e9
hz9sd	[nspid]Multiframe	WSA NonSurvey	Trefoil: HZ9SD {image primary HDU keyword: HZ9SD}	real	4		-0.9999995e9
hz9sh	[nspid]Multiframe	WSA NonSurvey	Trefoil: HZ9SH {image primary HDU keyword: HZ9SH}	real	4		-0.9999995e9