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Glossary of WSA NonSurvey attributes (UKIDSSDR2)
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

V

W

X

Y

Z

M
Name	Schema Table	Database	Description	Type	Length	Unit	Default Value	Unified Content Descriptor
m2u	[nspid]Multiframe	WSA NonSurvey	Raw position of M2 U (N-S tilt) {image primary HDU keyword: M2_U}	real	4	mrad	-0.9999995e9
m2v	[nspid]Multiframe	WSA NonSurvey	Raw position of M2 V (E-W tilt) {image primary HDU keyword: M2_V}	real	4	mrad	-0.9999995e9
m2w	[nspid]Multiframe	WSA NonSurvey	Raw position of M2 W (axial rotation) {image primary HDU keyword: M2_W}	real	4	mrad	-0.9999995e9
m2x	[nspid]Multiframe	WSA NonSurvey	Raw position of M2 X (E-W) {image primary HDU keyword: M2_X}	real	4	millimetres	-0.9999995e9
m2y	[nspid]Multiframe	WSA NonSurvey	Raw position of M2 Y (N-S) {image primary HDU keyword: M2_Y}	real	4	millimetres	-0.9999995e9
m2z	[nspid]Multiframe	WSA NonSurvey	Raw position of M2 Z (focus) {image primary HDU keyword: M2_Z}	real	4	millimetres	-0.9999995e9
M3Temp	[nspid]Multiframe	WSA NonSurvey	M3 temperature {image primary HDU keyword: M3_TEMP}	real	4	degrees_Kelvin	-0.9999995e9
maskID	[nspid]Multiframe	WSA NonSurvey	UID of library object mask frame {image extension keyword: CIR_OPM}	bigint	8		-99999999	ID_FRAME
maxDec	[nspid]CurrentAstrometry, [nspid]PreviousAstrometry	WSA NonSurvey	The maximum Dec (J2000) on the device	float	8	Degrees	-0.9999995e9	POS_EQ_DEC_MAIN
maxRa	[nspid]CurrentAstrometry, [nspid]PreviousAstrometry	WSA NonSurvey	The maximum RA (J2000) on the device	float	8	Degrees	-0.9999995e9	POS_EQ_RA_OTHER
maxSeeing	[nspid]RequiredMosaic, [nspid]RequiredStack	WSA NonSurvey	The maximum allowed seeing for intermediate stacks	real	4	arcsec
maxStelEll	[nspid]RequiredMosaic, [nspid]RequiredStack	WSA NonSurvey	The maximum allowed stellar ellipticity for intermediate stacks	real	4
mergedClass	[nspid]Source	WSA NonSurvey	Class flag from available measurements (1|0|-1|-2|-3|-9=galaxy|noise|stellar|probableStar|probableGalaxy|saturated)	smallint	2			CODE_MISC
			Individual detection classifications are combined in the source merging process to produce a set of attributes for each merged source as follows. Presently, a basic classification table is defined that assigns reasonably accurate, self-consistent probability values for a given classification code: Flag Meaning Probability (%) Star Galaxy Noise Saturated -9 Saturated 0.0 0.0 5.0 95.0 -3 Probable galaxy 25.0 70.0 5.0 0.0 -2 Probable star 70.0 25.0 5.0 0.0 -1 Star 90.0 5.0 5.0 0.0 0 Noise 5.0 5.0 90.0 0.0 +1 Galaxy 5.0 90.0 5.0 0.0 Then, each separately available classification is combined for a merged source using Bayesian classification rules, assuming each datum is independent: P(classk)=ΠiP(classk)i / ΣkΠiP(classk)i where classk is one of star|galaxy|noise|saturated, and i denotes the ith single detection passband measurement available (the non-zero entries are necessary for the independent measures method to work, since some cases might otherwise be mutually exclusive). For example, if an object is classed in J|H|K as -1|-2|+1 it would have merged classification probabilities of pStar=73.5%, pGalaxy=26.2%, pNoise=0.3% and pSaturated=0.0%. Decision thresholds for the resulting discrete classification flag mergedClass are 90% for definitive and 70% for probable; hence the above example would be classified (not unreasonably) as probably a star (mergedClass=-2). An additional decision rule enforces mergedClass=-9 (saturated) when any individual classification flag indicates saturation.
mergedClassStat	[nspid]Source	WSA NonSurvey	Merged N(0,1) stellarness-of-profile statistic	real	4		-0.9999995e9	STAT_PROP
			This profile classification statistic is a continuously distributed, Gaussian N(0,1) (i.e. zero mean, unit variance) statistic formed from the available individual classification statistics by averaging them and multiplying by N1/2 such that cuts on mergedClassStat result in completeness being independent of number of frames an object appears on, but with reliability improving with the number of frames.
mergeLogTable	[nspid]Programme	WSA NonSurvey	Table name of curation log for source merging	varchar	64			??
mergeSwVersion	[nspid]MergeLog	WSA NonSurvey	version number of the software used to merge the frames	real	4			ID_VERSION
method	[nspid]RequiredDiffImage	WSA NonSurvey	CASU difference image tool option string specifying the method to employ (recommended value=adaptive/back/zerosky)	varchar	64			??
minDec	[nspid]CurrentAstrometry, [nspid]PreviousAstrometry	WSA NonSurvey	The minimum Dec (J2000) on the device	float	8	Degrees	-0.9999995e9	POS_EQ_DEC_MAIN
minImageSize	[nspid]MultiframeDetector	WSA NonSurvey	Minimum size for images {catalogue extension keyword:  MINPIX}	int	4	pixels	-99999999	??
			Tunable parameter, in conjunction with the threshold above this determines how deep and how small "real" images can be. The default precludes many of the few pixel-hit cosmic rays from being considered since "real" images must have 4 contiguous simply-connected pixels in the union of the detection filter and data domains. For more details on image detection and parametersiation see the papers in CASU WFCAM/VISTA Publications.
minRa	[nspid]CurrentAstrometry, [nspid]PreviousAstrometry	WSA NonSurvey	The minimum RA (J2000) on the device	float	8	Degrees	-0.9999995e9	POS_EQ_RA_OTHER
mirrBottTempNW	[nspid]Multiframe	WSA NonSurvey	Mirror bottom temp. NW {image primary HDU keyword: MIRRBTNW}	real	4	degrees_Celsius	-0.9999995e9	PHYS_TEMP_MISC
mirrTempNE	[nspid]Multiframe	WSA NonSurvey	Mirror temperature NE {image primary HDU keyword: MIRRNE}	real	4	degrees_Celsius	-0.9999995e9	PHYS_TEMP_MISC
mirrTempNW	[nspid]Multiframe	WSA NonSurvey	Mirror temperature NW {image primary HDU keyword: MIRRNW}	real	4	degrees_Celsius	-0.9999995e9	PHYS_TEMP_MISC
mirrTempSE	[nspid]Multiframe	WSA NonSurvey	Mirror temperature SE {image primary HDU keyword: MIRRSE}	real	4	degrees_Celsius	-0.9999995e9	PHYS_TEMP_MISC
mirrTempSW	[nspid]Multiframe	WSA NonSurvey	Mirror temperature SW {image primary HDU keyword: MIRRSW}	real	4	degrees_Celsius	-0.9999995e9	PHYS_TEMP_MISC
mirrTopTempNW	[nspid]Multiframe	WSA NonSurvey	Mirror top temp. NW {image primary HDU keyword: MIRRTPNW}	real	4	degrees_Celsius	-0.9999995e9	PHYS_TEMP_MISC
mjdObs	[nspid]Multiframe	WSA NonSurvey	Modified Julian Date of the observation {image primary HDU keyword: MJD-OBS}	float	8		-0.9999995e9	TIME_DATE
morphClassFlag	[nspid]MultiframeDetector	WSA NonSurvey	Image morphological classifier flag, set if the classifier has been run. If so an object classification flag and a stellarness index is included in the binary table columns. {catalogue extension keyword:  CLASSIFD}	tinyint	1		0	CODE_MISC
mosaicTool	[nspid]RequiredMosaic	WSA NonSurvey	Name of mosaicing tool to be used	varchar	8		'CASU'	??
msbID	[nspid]Multiframe	WSA NonSurvey	Id min.-schedulable block {image primary HDU keyword: MSBID}	varchar	64		NONE	ID_NUMBER
muDec	[nspid]Source	WSA NonSurvey	Proper motion in Dec direction	real	4	mas/yr	-0.9999995e9	POS_EQ_PMDEC
multiframeID	[nspid]CurrentAstrometry, [nspid]Detection, [nspid]MultiframeDetector, [nspid]PreviousAstrometry, [nspid]PreviousMFDZP, [nspid]ProgrammeFrame	WSA NonSurvey	the UID of the relevant multiframe	bigint	8			ID_FRAME
multiframeID	[nspid]Multiframe	WSA NonSurvey	UID of the multiframe (assigned sequentially by the archive ingest process)	bigint	8			ID_FRAME
multiframeID	[nspid]Provenance	WSA NonSurvey	the UID of the component frame	bigint	8			ID_FRAME
muRa	[nspid]Source	WSA NonSurvey	Proper motion in RA direction	real	4	mas/yr	-0.9999995e9	POS_EQ_PMRA