WFCAM Science Archive

Glossary of WSA attributes

This Glossary alphabetically lists all attributes used in the UKIDSSEDR database(s) held in the WSA. If you would like to have more information about the schema tables please use the UKIDSSEDR 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

A

Name Schema Table Database Description Type Length Unit Default Value Unified Content Descriptor

a twomass_psc 2MASS Catalog identifier of an optical source from either the Tycho 2 or USNO-A2.0 catalog that falls within ~5" of the TWOMASS source position. varchar 1 ID_ALTERNATIVE

a00 CurrentSpatialMap, PreviousSpatialMap WSA the zeroth-order spatial map coefficient float 8 PHOT_ZP

a01 CurrentSpatialMap, PreviousSpatialMap WSA the first-order in y spatial map coefficient float 8 PHOT_ZP

a02 CurrentSpatialMap, PreviousSpatialMap WSA the second-order in y spatial map coefficient float 8 PHOT_ZP

a10 CurrentSpatialMap, PreviousSpatialMap WSA the first-order in x spatial map coefficient float 8 PHOT_ZP

a11 CurrentSpatialMap, PreviousSpatialMap WSA the first-order in x and y spatial map coefficient float 8 PHOT_ZP

a12 CurrentSpatialMap, PreviousSpatialMap WSA the second-order in y, first order in x spatial map coefficient float 8 PHOT_ZP

a20 CurrentSpatialMap, PreviousSpatialMap WSA the second-order in x spatial map coefficient float 8 PHOT_ZP

a21 CurrentSpatialMap, PreviousSpatialMap WSA the second-order in x, first order in y spatial map coefficient float 8 PHOT_ZP

a22 CurrentSpatialMap, PreviousSpatialMap WSA the second-order in x and y spatial map coefficient float 8 PHOT_ZP

adjacentFrameTolerance Programme WSA The match tolerance for adjacent frames in the survey real 4 Degrees ??

agentId Multiframe WSA Externally assigned unique identifier for remote agent (if any) {image primary HDU keyword: AGENTID} varchar 64 NONE ??

aI Detection SSA Semi-major axis of intensity-weighted fitted ellip. real 4 microns EXTENSION_RAD

air_temp twomass_scn 2MASS Air temperature at beginning of scan. real 4 degC PHYS_TEMP_MISC

airm twomass_scn 2MASS Airmass at beginning of scan. real 4 PHOT_ATM_AIRMASS

airTemp Multiframe WSA Air temperature {image primary HDU keyword: AIRTEMP} real 4 degrees_Celsius -0.9999995e9 PHYS_TEMP_MISC

ambiPressure Multiframe WSA Ambient pressure {image primary HDU keyword: BARPRESS} real 4 -0.9999995e9 PHYS_PRESS_GAS

amEnd Multiframe WSA Airmass at end of observation {image primary HDU keyword: AMEND} real 4 -0.9999995e9 PHOT_ATM_AIRMASS

amStart Multiframe WSA Airmass at start of observation {image primary HDU keyword: AMSTART} real 4 -0.9999995e9 PHOT_ATM_AIRMASS

anom twomass_scn 2MASS Special flag indicating whether or not an unusual problem was found in the Atlas Images for this scan. smallint 2 CODE_MISC

ap1 Detection SSA Area above 1st areal profile threshold int 4 pixels EXTENSION_AREA

ap2 Detection SSA Area above 2nd areal profile threshold int 4 pixels EXTENSION_AREA

ap3 Detection SSA Area above 3rd areal profile threshold int 4 pixels EXTENSION_AREA

ap4 Detection SSA Area above 4th areal profile threshold int 4 pixels EXTENSION_AREA

ap5 Detection SSA Area above 5th areal profile threshold int 4 pixels EXTENSION_AREA

ap6 Detection SSA Area above 6th areal profile threshold int 4 pixels EXTENSION_AREA

ap7 Detection SSA Area above 7th areal profile threshold int 4 pixels EXTENSION_AREA

ap8 Detection SSA Area above 8th areal profile threshold int 4 pixels EXTENSION_AREA

aperCor1 MultiframeDetector WSA 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 MultiframeDetector WSA 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 MultiframeDetector WSA 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 MultiframeDetector WSA 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 MultiframeDetector WSA 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 MultiframeDetector WSA 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 MultiframeDetector WSA 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 MultiframeDetector WSA 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 dxsDetection, gcsDetection, gpsDetection, lasDetection, udsDetection WSA 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.

aperFlux1 dxsListRemeasurement, gcsListRemeasurement, gpsListRemeasurement, lasListRemeasurement, udsListRemeasurement WSA 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 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA default aperture flux 10 {catalogue TType keyword: Aper_flux_10}
7 × rcore (see glossary entry for aperFlux1) real 4 ADU PHOT_INTENSITY_ADU

aperFlux10err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in aperture flux 10 {catalogue TType keyword: Aper_flux_10_err} real 4 ADU ERROR

aperFlux11 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA default aperture flux 11 {catalogue TType keyword: Aper_flux_11}
8 × rcore (see glossary entry for aperFlux1) real 4 ADU PHOT_INTENSITY_ADU

aperFlux11err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in aperture flux 11 {catalogue TType keyword: Aper_flux_11_err} real 4 ADU ERROR

aperFlux12 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA default aperture flux 12 {catalogue TType keyword: Aper_flux_12}
10 × rcore (see glossary entry for aperFlux1) real 4 ADU PHOT_INTENSITY_ADU

aperFlux12err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in aperture flux 12 {catalogue TType keyword: Aper_flux_12_err} real 4 ADU ERROR

aperFlux13 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA 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 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in aperture flux 13 {catalogue TType keyword: Aper_flux_13_err} real 4 ADU ERROR

aperFlux1err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in aperture flux counts 1 {catalogue TType keyword: Aper_flux_1_err} real 4 ADU ERROR

aperFlux2 dxsDetection, gcsDetection, gpsDetection, lasDetection, udsDetection WSA Default aperture flux 2 {catalogue TType keyword: Aper_flux_2}
1/√2 × rcore (see glossary entry for aperFlux1) real 4 ADU PHOT_INTENSITY_ADU

aperFlux2 dxsListRemeasurement, gcsListRemeasurement, gpsListRemeasurement, lasListRemeasurement, udsListRemeasurement WSA 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 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in aperture flux 2 {catalogue TType keyword: Aper_flux_2_err} real 4 ADU ERROR

aperFlux3 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA 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 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in aperture flux 3 {catalogue TType keyword: Aper_flux_3_err} real 4 ADU ERROR

aperFlux4 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA 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 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in aperture flux 4 {catalogue TType keyword: Aper_flux_4_err} real 4 ADU ERROR

aperFlux5 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA default aperture flux 5 {catalogue TType keyword: Aper_flux_5}
2 × rcore (see glossary entry for aperFlux1) real 4 ADU PHOT_INTENSITY_ADU

aperFlux5err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in aperture flux 5 {catalogue TType keyword: Aper_flux_5_err} real 4 ADU ERROR

aperFlux6 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA 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 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in aperture flux 6 {catalogue TType keyword: Aper_flux_6_err} real 4 ADU ERROR

aperFlux7 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA default aperture flux 7 {catalogue TType keyword: Aper_flux_7}
4 × rcore (see glossary entry for aperFlux1) real 4 ADU PHOT_INTENSITY_ADU

aperFlux7err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in aperture flux 7 {catalogue TType keyword: Aper_flux_7_err} real 4 ADU ERROR

aperFlux8 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA default aperture flux 8 {catalogue TType keyword: Aper_flux_8}
5 × rcore (see glossary entry for aperFlux1) real 4 ADU PHOT_INTENSITY_ADU

aperFlux8err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in aperture flux 8 {catalogue TType keyword: Aper_flux_8_err} real 4 ADU ERROR

aperFlux9 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA default aperture flux 9 {catalogue TType keyword: Aper_flux_9}
6 × rcore (see glossary entry for aperFlux1) real 4 ADU PHOT_INTENSITY_ADU

aperFlux9err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in aperture flux 9 {catalogue TType keyword: Aper_flux_9_err} real 4 ADU ERROR

aperMag1 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Calibrated and corrected aperture magnitude 1 real 4 mag PHOT_INT-MAG

aperMag10 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Calibrated and corrected aperture magnitude 10 real 4 mag PHOT_INT-MAG

aperMag10err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in calibrated aperture magnitude 10 real 4 mag ERROR

aperMag11 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Calibrated and corrected aperture magnitude 11 real 4 mag PHOT_INT-MAG

aperMag11err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in calibrated aperture magnitude 11 real 4 mag ERROR

aperMag12 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Calibrated and corrected aperture magnitude 12 real 4 mag PHOT_INT-MAG

aperMag12err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in calibrated aperture magnitude 12 real 4 mag ERROR

aperMag13 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Calibrated and corrected aperture magnitude 13 real 4 mag PHOT_INT-MAG

aperMag13err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in calibrated aperture magnitude 13 real 4 mag ERROR

aperMag1err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in calibrated aperture magnitude 1 real 4 mag ERROR

aperMag2 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Calibrated and corrected aperture magnitude 2 real 4 mag PHOT_INT-MAG

aperMag2err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in calibrated aperture magnitude 2 real 4 mag ERROR

aperMag3 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Calibrated and corrected aperture magnitude 3 real 4 mag PHOT_INT-MAG

aperMag3err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in calibrated aperture magnitude 3 real 4 mag ERROR

aperMag4 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Calibrated and corrected aperture magnitude 4 real 4 mag PHOT_INT-MAG

aperMag4err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in calibrated aperture magnitude 4 real 4 mag ERROR

aperMag5 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Calibrated and corrected aperture magnitude 5 real 4 mag PHOT_INT-MAG

aperMag5err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in calibrated aperture magnitude 5 real 4 mag ERROR

aperMag6 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Calibrated and corrected aperture magnitude 6 real 4 mag PHOT_INT-MAG

aperMag6err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in calibrated aperture magnitude 6 real 4 mag ERROR

aperMag7 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Calibrated and corrected aperture magnitude 7 real 4 mag PHOT_INT-MAG

aperMag7err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in calibrated aperture magnitude 7 real 4 mag ERROR

aperMag8 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Calibrated and corrected aperture magnitude 8 real 4 mag PHOT_INT-MAG

aperMag8err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in calibrated aperture magnitude 8 real 4 mag ERROR

aperMag9 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Calibrated and corrected aperture magnitude 9 real 4 mag PHOT_INT-MAG

aperMag9err dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Error in calibrated aperture magnitude 9 real 4 mag ERROR

aperture RequiredListDrivenProduct WSA CASU list-driven photometry tool option specifying the fixed radius to be used for photometry real 4 pixels ??

apertureX Multiframe WSA Aperture X axis coordinate {image primary HDU keyword: APER_X} real 4 arcsec -0.9999995e9

apertureY Multiframe WSA Aperture Y axis coordinate {image primary HDU keyword: APER_Y} real 4 arcsec -0.9999995e9

apParam Plate SSA Areal profile parameter real 4 REDUCT_PARAM

aProf1 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA 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 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA No. of pixels above rethreshold 2 {catalogue TType keyword: Areal_2_profile}
(see glossary entry for aProf1) int 4 pixels NUMBER

aProf3 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA No. of pixels above rethreshold 3 {catalogue TType keyword: Areal_3_profile}
(see glossary entry for aProf1) int 4 pixels NUMBER

aProf4 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA No. of pixels above rethreshold 4 {catalogue TType keyword: Areal_4_profile}
(see glossary entry for aProf1) int 4 pixels NUMBER

aProf5 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA No. of pixels above rethreshold 5 {catalogue TType keyword: Areal_5_profile}
(see glossary entry for aProf1) int 4 pixels NUMBER

aProf6 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA No. of pixels above rethreshold 6 {catalogue TType keyword: Areal_6_profile}
(see glossary entry for aProf1) int 4 pixels NUMBER

aProf7 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA No. of pixels above rethreshold 7 {catalogue TType keyword: Areal_7_profile}
(see glossary entry for aProf1) int 4 pixels NUMBER

aProf8 dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA No. of pixels above rethreshold 8 {catalogue TType keyword: Areal_8_profile}
(see glossary entry for aProf1) int 4 pixels NUMBER

area Detection SSA Area within detection isophote int 4 pixels EXTENSION_AREA

areaCut Plate SSA Minimum area of detected object tinyint 1 pixels NUMBER

areaMax Plate SSA Maximum object area in IAM file int 4 pixels EXTENSION_AREA

areaMin Plate SSA Minimum object area in IAM file int 4 pixels EXTENSION_AREA

astigAmpl Multiframe WSA Astigmatism: amplitude {image primary HDU keyword: AAMP} real 4 -0.9999995e9

astigPhi Multiframe WSA Astigmatism: angle {image primary HDU keyword: APHI} real 4 -0.9999995e9

astResidX Plate SSA Residual of astrometric fit in X real 4 arcsec FIT_RESIDUAL

astResidY Plate SSA Residual of astrometric fit in Y real 4 arcsec FIT_RESIDUAL

astromID DifferenceImage, MosaicImage, StackImage WSA the ID of the superframe for the astrometry bigint 8 ID_FRAME

aU Detection SSA Semi-major axis of unweighted fitted ellipse real 4 microns EXTENSION_RAD

autoGuiderFreq Multiframe WSA Autoguider: Frequency {image primary HDU keyword: AGFREQ} real 4 -0.9999995e9

avSaturLevel MultiframeDetector WSA 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 MultiframeDetector WSA 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 MultiframeDetector WSA length of data axis 1 (X-axis size) {image extension keyword: (Z)NAXIS1} int 4 NUMBER

axis2Length MultiframeDetector WSA length of data axis 2 (Y-axis size) {image extension keyword: (Z)NAXIS2} int 4 NUMBER

aXmax Plate SSA SuperCOSMOS XMAX of measured area real 4 microns POS_PLATE_X

aXmin Plate SSA SuperCOSMOS XMIN of measured area real 4 microns POS_PLATE_X

aYmax Plate SSA SuperCOSMOS YMAX of measured area real 4 microns POS_PLATE_Y

aYmin Plate SSA SuperCOSMOS YMIN of measured area real 4 microns POS_PLATE_Y

WFAU, Institute for Astronomy,
Royal Observatory, Blackford Hill
Edinburgh, EH9 3HJ, UK
Tel +44 131 668 8356 (office)
or +44 131 668 8100 (switchboard)

wsa-support@roe.ac.uk
27/01/2009