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Glossary of WSA NonSurvey attributes (UKIDSSDR5)
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).

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Name	Schema Table	Database	Description	Type	Length	Unit	Default Value	Unified Content Descriptor
adjacentFrameTolerance	[nspid]Programme	WSA NonSurvey	The match tolerance for adjacent frames in the survey	real	4	Degrees		??
aebv	[nspid]Filter	WSA NonSurvey	The constant to multiply the Schlegel map E(B-V) by to get the total galactic extinction.	real	4		-0.9999995e9
agentId	[nspid]Multiframe	WSA NonSurvey	Externally assigned unique identifier for remote agent (if any) {image primary HDU keyword: AGENTID}	varchar	64		NONE	??
airTemp	[nspid]Multiframe	WSA NonSurvey	Air temperature {image primary HDU keyword: AIRTEMP}	real	4	degrees_Celsius	-0.9999995e9	PHYS_TEMP_MISC
ambiPressure	[nspid]Multiframe	WSA NonSurvey	Ambient pressure {image primary HDU keyword: BARPRESS}	real	4		-0.9999995e9	PHYS_PRESS_GAS
amEnd	[nspid]Multiframe	WSA NonSurvey	Airmass at end of observation {image primary HDU keyword: AMEND}	real	4		-0.9999995e9	PHOT_ATM_AIRMASS
amStart	[nspid]Multiframe	WSA NonSurvey	Airmass at start of observation {image primary HDU keyword: AMSTART}	real	4		-0.9999995e9	PHOT_ATM_AIRMASS
aperCor1	[nspid]MultiframeDetector	WSA NonSurvey	Stellar aperture correction: 1⁄2 × core flux {catalogue extension keyword:  APCOR1} corrected photometry = 2.5×log10(flux) + aperCor + skyCorr	real	4		-0.9999995e9	??
			Aperture corrections in magnitudes needed to correct the assorted aperture-like measures produced in the catalogues onto the equivalent of a total flux stellar system. These constitute the components of a curve-of-growth analysis contained within the catalogues with radii defined in the previous table. They also work well as a first order seeing correction for faint galaxies. Larger aperture corrections are not included.
aperCor2	[nspid]MultiframeDetector	WSA NonSurvey	Stellar aperture correction: 1⁄√2 core flux {catalogue extension keyword:  APCOR2} corrected photometry = 2.5×log10(flux) + aperCor + skyCorr	real	4		-0.9999995e9	??
			Aperture corrections in magnitudes needed to correct the assorted aperture-like measures produced in the catalogues onto the equivalent of a total flux stellar system. These constitute the components of a curve-of-growth analysis contained within the catalogues with radii defined in the previous table. They also work well as a first order seeing correction for faint galaxies. Larger aperture corrections are not included.
aperCor3	[nspid]MultiframeDetector	WSA NonSurvey	Stellar aperture correction: core flux {catalogue extension keyword:  APCOR3} corrected photometry = 2.5×log10(flux) + aperCor + skyCorr	real	4		-0.9999995e9	??
			Aperture corrections in magnitudes needed to correct the assorted aperture-like measures produced in the catalogues onto the equivalent of a total flux stellar system. These constitute the components of a curve-of-growth analysis contained within the catalogues with radii defined in the previous table. They also work well as a first order seeing correction for faint galaxies. Larger aperture corrections are not included.
aperCor4	[nspid]MultiframeDetector	WSA NonSurvey	Stellar aperture correction: √2 × core flux {catalogue extension keyword:  APCOR4} corrected photometry = 2.5×log10(flux) + aperCor + skyCorr	real	4		-0.9999995e9	??
			Aperture corrections in magnitudes needed to correct the assorted aperture-like measures produced in the catalogues onto the equivalent of a total flux stellar system. These constitute the components of a curve-of-growth analysis contained within the catalogues with radii defined in the previous table. They also work well as a first order seeing correction for faint galaxies. Larger aperture corrections are not included.
aperCor5	[nspid]MultiframeDetector	WSA NonSurvey	Stellar aperture correction: 2 × core flux {catalogue extension keyword:  APCOR5} corrected photometry = 2.5×log10(flux) + aperCor + skyCorr	real	4		-0.9999995e9	??
			Aperture corrections in magnitudes needed to correct the assorted aperture-like measures produced in the catalogues onto the equivalent of a total flux stellar system. These constitute the components of a curve-of-growth analysis contained within the catalogues with radii defined in the previous table. They also work well as a first order seeing correction for faint galaxies. Larger aperture corrections are not included.
aperCor6	[nspid]MultiframeDetector	WSA NonSurvey	Stellar aperture correction: 2√2 × core flux {catalogue extension keyword:  APCOR6} corrected photometry = 2.5×log10(flux) + aperCor + skyCorr	real	4		-0.9999995e9	??
			Aperture corrections in magnitudes needed to correct the assorted aperture-like measures produced in the catalogues onto the equivalent of a total flux stellar system. These constitute the components of a curve-of-growth analysis contained within the catalogues with radii defined in the previous table. They also work well as a first order seeing correction for faint galaxies. Larger aperture corrections are not included.
aperCor7	[nspid]MultiframeDetector	WSA NonSurvey	Stellar aperture correction: 4 × core flux {catalogue extension keyword:  APCOR7} corrected photometry = 2.5×log10(flux) + aperCor + skyCorr	real	4		-0.9999995e9	??
			Aperture corrections in magnitudes needed to correct the assorted aperture-like measures produced in the catalogues onto the equivalent of a total flux stellar system. These constitute the components of a curve-of-growth analysis contained within the catalogues with radii defined in the previous table. They also work well as a first order seeing correction for faint galaxies. Larger aperture corrections are not included.
aperCorPeak	[nspid]MultiframeDetector	WSA NonSurvey	Stellar aperture correction: peak height {catalogue extension keyword:  APCORPK} corrected photometry = 2.5×log10(flux) + aperCor + skyCorr	real	4		-0.9999995e9	??
			Aperture corrections in magnitudes needed to correct the assorted aperture-like measures produced in the catalogues onto the equivalent of a total flux stellar system. These constitute the components of a curve-of-growth analysis contained within the catalogues with radii defined in the previous table. They also work well as a first order seeing correction for faint galaxies. Larger aperture corrections are not included.
aperFlux1	[nspid]Detection	WSA NonSurvey	Default aperture flux counts 1 {catalogue TType keyword: Aper_flux_1} 1/2 × rcore	real	4	ADU		PHOT_INTENSITY_ADU
			These are a series of different radii soft-edged apertures designed to adequately sample the curve-of-growth of the majority of images and to provide fixed-sized aperture fluxes for all images. The scale size for these apertures is selected by defining a scale radius ≈<FWHM> for site+instrument. In the case of WFCAM this "core" radius (rcore) has been fixed at 1.0 arcsec for convenience in inter-comparison with other datasets. A 1.0 arcsec radius is equivalent to 2.5 pixels for non-interleaved data, 5.0 pixels for 2×2 interleaved data, and 7.5 pixels for 3×3 interleaved data. In ≈1 arcsec seeing an rcore-radius aperture contains roughly 2/3 of the total flux of stellar images. [In general the rcore parameter is user specifiable and hence is recorded in the output catalogue FITS header.] The aperture fluxes are sky-corrected integrals (summations) with a soft-edge (ie. pro-rata flux division for boundary pixels). However, for overlapping images they are more subtle than this since they are in practice simultaneously fitted top-hat functions, to minimise the effects of crowding. Images external to the blend are also flagged and not included in the large radius summations. Extras for generalised galaxy photometry further spaced in radius to ensure reasonable sampling further out. Note these are all corrected for pixels from overlapping neighbouring images. The aperture fluxes can be combined with later-derived aperture corrections for general purpose photometry and together with pHeight (the peak flux) give a simple curve-of-growth measurement which forms the basis of the morphological classification scheme.
aperFlux10	[nspid]Detection	WSA NonSurvey	default aperture flux 10 {catalogue TType keyword: Aper_flux_10} 7 × rcore (see glossary entry for aperFlux1)	real	4	ADU		PHOT_INTENSITY_ADU
aperFlux10err	[nspid]Detection	WSA NonSurvey	Error in aperture flux 10 {catalogue TType keyword: Aper_flux_10_err}	real	4	ADU		ERROR
aperFlux11	[nspid]Detection	WSA NonSurvey	default aperture flux 11 {catalogue TType keyword: Aper_flux_11} 8 × rcore (see glossary entry for aperFlux1)	real	4	ADU		PHOT_INTENSITY_ADU
aperFlux11err	[nspid]Detection	WSA NonSurvey	Error in aperture flux 11 {catalogue TType keyword: Aper_flux_11_err}	real	4	ADU		ERROR
aperFlux12	[nspid]Detection	WSA NonSurvey	default aperture flux 12 {catalogue TType keyword: Aper_flux_12} 10 × rcore (see glossary entry for aperFlux1)	real	4	ADU		PHOT_INTENSITY_ADU
aperFlux12err	[nspid]Detection	WSA NonSurvey	Error in aperture flux 12 {catalogue TType keyword: Aper_flux_12_err}	real	4	ADU		ERROR
aperFlux13	[nspid]Detection	WSA NonSurvey	default aperture flux 13 {catalogue TType keyword: Aper_flux_13} 12 × rcore ie. ≈24 arcsec diameter. (see glossary entry for aperFlux1)	real	4	ADU		PHOT_INTENSITY_ADU
aperFlux13err	[nspid]Detection	WSA NonSurvey	Error in aperture flux 13 {catalogue TType keyword: Aper_flux_13_err}	real	4	ADU		ERROR
aperFlux1err	[nspid]Detection	WSA NonSurvey	Error in aperture flux counts 1 {catalogue TType keyword: Aper_flux_1_err}	real	4	ADU		ERROR
aperFlux2	[nspid]Detection	WSA NonSurvey	Default aperture flux 2 {catalogue TType keyword: Aper_flux_2} 1/√2 × rcore (see glossary entry for aperFlux1)	real	4	ADU		PHOT_INTENSITY_ADU
aperFlux2err	[nspid]Detection	WSA NonSurvey	Error in aperture flux 2 {catalogue TType keyword: Aper_flux_2_err}	real	4	ADU		ERROR
aperFlux3	[nspid]Detection	WSA NonSurvey	default aperture flux 3 {catalogue TType keyword: Aper_flux_3} rcore; recommended if a single number is required to represent the flux for ALL images. (see glossary entry for aperFlux1)	real	4	ADU		PHOT_INTENSITY_ADU
aperFlux3err	[nspid]Detection	WSA NonSurvey	Error in aperture flux 3 {catalogue TType keyword: Aper_flux_3_err}	real	4	ADU		ERROR
aperFlux4	[nspid]Detection	WSA NonSurvey	default aperture flux 4 {catalogue TType keyword: Aper_flux_4} √2 × rcore; ensures ∼99% of PSF flux. (see glossary entry for aperFlux1)	real	4	ADU		PHOT_INTENSITY_ADU
aperFlux4err	[nspid]Detection	WSA NonSurvey	Error in aperture flux 4 {catalogue TType keyword: Aper_flux_4_err}	real	4	ADU		ERROR
aperFlux5	[nspid]Detection	WSA NonSurvey	default aperture flux 5 {catalogue TType keyword: Aper_flux_5} 2 × rcore (see glossary entry for aperFlux1)	real	4	ADU		PHOT_INTENSITY_ADU
aperFlux5err	[nspid]Detection	WSA NonSurvey	Error in aperture flux 5 {catalogue TType keyword: Aper_flux_5_err}	real	4	ADU		ERROR
aperFlux6	[nspid]Detection	WSA NonSurvey	default aperture flux 6 {catalogue TType keyword: Aper_flux_6} 2√2 × rcore (see glossary entry for aperFlux1)	real	4	ADU		PHOT_INTENSITY_ADU
aperFlux6err	[nspid]Detection	WSA NonSurvey	Error in aperture flux 6 {catalogue TType keyword: Aper_flux_6_err}	real	4	ADU		ERROR
aperFlux7	[nspid]Detection	WSA NonSurvey	default aperture flux 7 {catalogue TType keyword: Aper_flux_7} 4 × rcore (see glossary entry for aperFlux1)	real	4	ADU		PHOT_INTENSITY_ADU
aperFlux7err	[nspid]Detection	WSA NonSurvey	Error in aperture flux 7 {catalogue TType keyword: Aper_flux_7_err}	real	4	ADU		ERROR
aperFlux8	[nspid]Detection	WSA NonSurvey	default aperture flux 8 {catalogue TType keyword: Aper_flux_8} 5 × rcore (see glossary entry for aperFlux1)	real	4	ADU		PHOT_INTENSITY_ADU
aperFlux8err	[nspid]Detection	WSA NonSurvey	Error in aperture flux 8 {catalogue TType keyword: Aper_flux_8_err}	real	4	ADU		ERROR
aperFlux9	[nspid]Detection	WSA NonSurvey	default aperture flux 9 {catalogue TType keyword: Aper_flux_9} 6 × rcore (see glossary entry for aperFlux1)	real	4	ADU		PHOT_INTENSITY_ADU
aperFlux9err	[nspid]Detection	WSA NonSurvey	Error in aperture flux 9 {catalogue TType keyword: Aper_flux_9_err}	real	4	ADU		ERROR
aperMag1	[nspid]Detection	WSA NonSurvey	Calibrated and corrected aperture magnitude 1	real	4	mag		PHOT_INT-MAG
aperMag10	[nspid]Detection	WSA NonSurvey	Calibrated and corrected aperture magnitude 10	real	4	mag		PHOT_INT-MAG
aperMag10err	[nspid]Detection	WSA NonSurvey	Error in calibrated aperture magnitude 10	real	4	mag		ERROR
aperMag11	[nspid]Detection	WSA NonSurvey	Calibrated and corrected aperture magnitude 11	real	4	mag		PHOT_INT-MAG
aperMag11err	[nspid]Detection	WSA NonSurvey	Error in calibrated aperture magnitude 11	real	4	mag		ERROR
aperMag12	[nspid]Detection	WSA NonSurvey	Calibrated and corrected aperture magnitude 12	real	4	mag		PHOT_INT-MAG
aperMag12err	[nspid]Detection	WSA NonSurvey	Error in calibrated aperture magnitude 12	real	4	mag		ERROR
aperMag13	[nspid]Detection	WSA NonSurvey	Calibrated and corrected aperture magnitude 13	real	4	mag		PHOT_INT-MAG
aperMag13err	[nspid]Detection	WSA NonSurvey	Error in calibrated aperture magnitude 13	real	4	mag		ERROR
aperMag1err	[nspid]Detection	WSA NonSurvey	Error in calibrated aperture magnitude 1	real	4	mag		ERROR
aperMag2	[nspid]Detection	WSA NonSurvey	Calibrated and corrected aperture magnitude 2	real	4	mag		PHOT_INT-MAG
aperMag2err	[nspid]Detection	WSA NonSurvey	Error in calibrated aperture magnitude 2	real	4	mag		ERROR
aperMag3	[nspid]Detection	WSA NonSurvey	Calibrated and corrected aperture magnitude 3	real	4	mag		PHOT_INT-MAG
aperMag3err	[nspid]Detection	WSA NonSurvey	Error in calibrated aperture magnitude 3	real	4	mag		ERROR
aperMag4	[nspid]Detection	WSA NonSurvey	Calibrated and corrected aperture magnitude 4	real	4	mag		PHOT_INT-MAG
aperMag4err	[nspid]Detection	WSA NonSurvey	Error in calibrated aperture magnitude 4	real	4	mag		ERROR
aperMag5	[nspid]Detection	WSA NonSurvey	Calibrated and corrected aperture magnitude 5	real	4	mag		PHOT_INT-MAG
aperMag5err	[nspid]Detection	WSA NonSurvey	Error in calibrated aperture magnitude 5	real	4	mag		ERROR
aperMag6	[nspid]Detection	WSA NonSurvey	Calibrated and corrected aperture magnitude 6	real	4	mag		PHOT_INT-MAG
aperMag6err	[nspid]Detection	WSA NonSurvey	Error in calibrated aperture magnitude 6	real	4	mag		ERROR
aperMag7	[nspid]Detection	WSA NonSurvey	Calibrated and corrected aperture magnitude 7	real	4	mag		PHOT_INT-MAG
aperMag7err	[nspid]Detection	WSA NonSurvey	Error in calibrated aperture magnitude 7	real	4	mag		ERROR
aperMag8	[nspid]Detection	WSA NonSurvey	Calibrated and corrected aperture magnitude 8	real	4	mag		PHOT_INT-MAG
aperMag8err	[nspid]Detection	WSA NonSurvey	Error in calibrated aperture magnitude 8	real	4	mag		ERROR
aperMag9	[nspid]Detection	WSA NonSurvey	Calibrated and corrected aperture magnitude 9	real	4	mag		PHOT_INT-MAG
aperMag9err	[nspid]Detection	WSA NonSurvey	Error in calibrated aperture magnitude 9	real	4	mag		ERROR
aperture	[nspid]RequiredListDrivenProduct	WSA NonSurvey	CASU list-driven photometry tool option specifying the fixed radius to be used for photometry	real	4	pixels		??
apertureX	[nspid]Multiframe	WSA NonSurvey	Aperture X axis coordinate {image primary HDU keyword: APER_X}	real	4	arcsec	-0.9999995e9
apertureY	[nspid]Multiframe	WSA NonSurvey	Aperture Y axis coordinate {image primary HDU keyword: APER_Y}	real	4	arcsec	-0.9999995e9
aProf1	[nspid]Detection	WSA NonSurvey	No. of pixels above rethreshold 1 {catalogue TType keyword: Areal_1_profile}	int	4	pixels		NUMBER
			Number of pixels above a series of threshold levels relative to local sky. Levels are set at T, 2T, 4T, 8T … 128T where T is the threshold. These can be thought of as a sort of poor man's radial profile. Note that for now deblended, ie. overlapping images, only the first areal profile is computed and the rest are set to -1 flagging the difficulty of computing accurate profiles. For blended images this parameter is used to flag the start of the sequence of the deblended components by setting the first in the sequence to 0.
aProf2	[nspid]Detection	WSA NonSurvey	No. of pixels above rethreshold 2 {catalogue TType keyword: Areal_2_profile} (see glossary entry for aProf1)	int	4	pixels		NUMBER
aProf3	[nspid]Detection	WSA NonSurvey	No. of pixels above rethreshold 3 {catalogue TType keyword: Areal_3_profile} (see glossary entry for aProf1)	int	4	pixels		NUMBER
aProf4	[nspid]Detection	WSA NonSurvey	No. of pixels above rethreshold 4 {catalogue TType keyword: Areal_4_profile} (see glossary entry for aProf1)	int	4	pixels		NUMBER
aProf5	[nspid]Detection	WSA NonSurvey	No. of pixels above rethreshold 5 {catalogue TType keyword: Areal_5_profile} (see glossary entry for aProf1)	int	4	pixels		NUMBER
aProf6	[nspid]Detection	WSA NonSurvey	No. of pixels above rethreshold 6 {catalogue TType keyword: Areal_6_profile} (see glossary entry for aProf1)	int	4	pixels		NUMBER
aProf7	[nspid]Detection	WSA NonSurvey	No. of pixels above rethreshold 7 {catalogue TType keyword: Areal_7_profile} (see glossary entry for aProf1)	int	4	pixels		NUMBER
aProf8	[nspid]Detection	WSA NonSurvey	No. of pixels above rethreshold 8 {catalogue TType keyword: Areal_8_profile} (see glossary entry for aProf1)	int	4	pixels		NUMBER
astigAmpl	[nspid]Multiframe	WSA NonSurvey	Astigmatism: amplitude {image primary HDU keyword: AAMP}	real	4		-0.9999995e9
astigPhi	[nspid]Multiframe	WSA NonSurvey	Astigmatism: angle {image primary HDU keyword: APHI}	real	4		-0.9999995e9
autoGuiderFreq	[nspid]Multiframe	WSA NonSurvey	Autoguider: Frequency {image primary HDU keyword: AGFREQ}	real	4		-0.9999995e9
avSaturLevel	[nspid]MultiframeDetector	WSA NonSurvey	Average saturation level in frame {catalogue extension keyword:  SATURATE}	real	4		-0.9999995e9	??
			An estimate directly from saturated images on the frame at what level image saturation occurs, including sky. This varies from detector to detector depending on the relative gains applied to bring them to a uniform flatfield response etc.
avStellarEll	[nspid]MultiframeDetector	WSA NonSurvey	Average stellar ellipticity (1-b/a) {catalogue extension keyword:  ELLIPTIC} Should not average much above 0.15 for "normal" frames	real	4		-0.9999995e9	PHYS_ELLIPTICITY
axis1Length	[nspid]MultiframeDetector	WSA NonSurvey	length of data axis 1 (X-axis size) {image extension keyword: (Z)NAXIS1}	int	4			NUMBER
axis2Length	[nspid]MultiframeDetector	WSA NonSurvey	length of data axis 2 (Y-axis size) {image extension keyword: (Z)NAXIS2}	int	4			NUMBER