WFCAM Science Archive

Glossary of WSA attributes

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

H

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

h2_1AperMag3 gpsSource WSA Extended source H2 (1st epoch) mag (2.0 arcsec aperture diameter) real 4 mag -0.9999995e9 PHOT_MAG

h2_1AperMag3Err gpsSource WSA Error in extended source H2 (1st epoch) mag (2.0 arcsec aperture diameter) real 4 mag -0.9999995e9 ERROR

h2_1AperMag4 gpsSource WSA Extended source H2 (1st epoch) mag (2.8 arcsec aperture diameter) real 4 mag -0.9999995e9 PHOT_MAG

h2_1AperMag4Err gpsSource WSA Error in extended source H2 (1st epoch) mag (2.8 arcsec aperture diameter) real 4 mag -0.9999995e9 ERROR

h2_1AperMag6 gpsSource WSA Extended source H2 (1st epoch) mag (5.7 arcsec aperture diameter) real 4 mag -0.9999995e9 PHOT_MAG

h2_1AperMag6Err gpsSource WSA Error in extended source H2 (1st epoch) mag (5.7 arcsec aperture diameter) real 4 mag -0.9999995e9 ERROR

h2_1Class gpsSource, gpsSourceRemeasurement WSA discrete image classification flag in 1st epoch H2 smallint 2 -9999 CLASS_MISC

h2_1ClassStat gpsSource, gpsSourceRemeasurement WSA N(0,1) stellarness-of-profile statistic in 1st epoch H2 real 4 -0.9999995e9 STAT_PROP

h2_1Deblend gpsSource, gpsSourceRemeasurement WSA flag indicating parent/child relation in 1st epoch H2 int 4 -99999999 CODE_MISC

h2_1Ell gpsSource, gpsSourceRemeasurement WSA 1-b/a, where a/b=semi-major/minor axes in 1st epoch H2 real 4 -0.9999995e9 PHYS_ELLIPTICITY

h2_1eNum gpsMergeLog WSA the extension number of this H2 frame (ep1) tinyint 1 NUMBER

h2_1ErrBits gpsSource, gpsSourceRemeasurement WSA processing warning/error bitwise flags in 1st epoch H2 int 4 -99999999 CODE_MISC

h2_1Eta gpsSource WSA 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.

h2_1Gausig gpsSource, gpsSourceRemeasurement WSA RMS of axes of ellipse fit in 1st epoch H2 real 4 pixels -0.9999995e9 MORPH_PARAM

h2_1HallMag gpsSource WSA Point source H2 (1st epoch) mag real 4 mag -0.9999995e9 PHOT_MAG

h2_1HallMagErr gpsSource WSA Error in point source H2 (1st epoch) mag real 4 mag -0.9999995e9 ERROR

h2_1Mag gpsSourceRemeasurement WSA 1st epoch H2 mag (as appropriate for this merged source) real 4 mag -0.9999995e9 PHOT_MAG

h2_1MagErr gpsSourceRemeasurement WSA Error in 1st epoch H2 mag real 4 mag -0.9999995e9 ERROR

h2_1mfID gpsMergeLog WSA the UID of the relevant H2 multiframe (ep1) bigint 8 ID_FRAME

h2_1mk_1 gpsSourceRemeasurement WSA Default colour H2-K (using appropriate mags) real 4 mag PHOT_COLOR

h2_1mk_1Err gpsSourceRemeasurement WSA Error on colour H2-K real 4 mag ERROR

h2_1mk_1Ext gpsSource WSA Extended source colour H2-K (using appropriate mags) 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.

h2_1mk_1ExtErr gpsSource WSA Error on colour H2-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.

h2_1mk_1Pnt gpsSource WSA Point source colour H2-K (using appropriate mags) 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.

h2_1mk_1PntErr gpsSource WSA Error on colour H2-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.

h2_1ObjID gpsSource WSA the UID of the 1st H2 detection bigint 8 -99999999 ID_NUMBER

h2_1ObjID gpsSourceRemeasurement WSA the UID of the 1st H2 remeasurement bigint 8 -99999999 ID_NUMBER

h2_1PA gpsSource, gpsSourceRemeasurement WSA ellipse fit celestial orientation in 1st epoch H2 real 4 Degrees -0.9999995e9 POS_POS-ANG

h2_1PetroMag gpsSource WSA Extended source H2 (1st epoch) mag (Petrosian) real 4 mag -0.9999995e9 PHOT_MAG

h2_1PetroMagErr gpsSource WSA Error in extended source H2 (1st epoch) mag (Petrosian) real 4 mag -0.9999995e9 ERROR

h2_1ppErrBits gpsSource, gpsSourceRemeasurement WSA additional WFAU post-processing error bits in 1st epoch H2 int 4 -99999999 CODE_MISC

h2_1PsfMag gpsSource WSA Point source profile-fitted H2 (1st epoch) mag real 4 mag -0.9999995e9 PHOT_MAG

h2_1PsfMagErr gpsSource WSA Error in point source profile-fitted H2 (1st epoch) mag real 4 mag -0.9999995e9 ERROR

h2_1SeqNum gpsSource WSA the running number of the 1st H2 detection int 4 -99999999 ID_NUMBER

h2_1SeqNum gpsSourceRemeasurement WSA the running number of the 1st H2 remeasurement int 4 -99999999 ID_NUMBER

h2_1SerMag2D gpsSource WSA Extended source H2 mag (profile-fitted) real 4 mag -0.9999995e9 PHOT_MAG

h2_1SerMag2DErr gpsSource WSA Error in extended source H2 (1st epoch) mag (profile-fitted) real 4 mag -0.9999995e9 ERROR

h2_1Xi gpsSource WSA 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.

h2_2AperMag3 gpsSource WSA Extended source H2 (2nd epoch) mag (2.0 arcsec aperture diameter) real 4 mag -0.9999995e9 PHOT_MAG

h2_2AperMag3Err gpsSource WSA Error in extended source H2 (2nd epoch) mag (2.0 arcsec aperture diameter) real 4 mag -0.9999995e9 ERROR

h2_2AperMag4 gpsSource WSA Extended source H2 (2nd epoch) mag (2.8 arcsec aperture diameter) real 4 mag -0.9999995e9 PHOT_MAG

h2_2AperMag4Err gpsSource WSA Error in extended source H2 (2nd epoch) mag (2.8 arcsec aperture diameter) real 4 mag -0.9999995e9 ERROR

h2_2AperMag6 gpsSource WSA Extended source H2 (2nd epoch) mag (5.7 arcsec aperture diameter) real 4 mag -0.9999995e9 PHOT_MAG

h2_2AperMag6Err gpsSource WSA Error in extended source H2 (2nd epoch) mag (5.7 arcsec aperture diameter) real 4 mag -0.9999995e9 ERROR

h2_2Class gpsSource, gpsSourceRemeasurement WSA discrete image classification flag in 2nd epoch H2 smallint 2 -9999 CLASS_MISC

h2_2ClassStat gpsSource, gpsSourceRemeasurement WSA N(0,1) stellarness-of-profile statistic in 2nd epoch H2 real 4 -0.9999995e9 STAT_PROP

h2_2Deblend gpsSource, gpsSourceRemeasurement WSA flag indicating parent/child relation in 2nd epoch H2 int 4 -99999999 CODE_MISC

h2_2Ell gpsSource, gpsSourceRemeasurement WSA 1-b/a, where a/b=semi-major/minor axes in 2nd epoch H2 real 4 -0.9999995e9 PHYS_ELLIPTICITY

h2_2eNum gpsMergeLog WSA the extension number of this H2 frame (ep2) tinyint 1 NUMBER

h2_2ErrBits gpsSource, gpsSourceRemeasurement WSA processing warning/error bitwise flags in 2nd epoch H2 int 4 -99999999 CODE_MISC

h2_2Eta gpsSource WSA 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.

h2_2Gausig gpsSource, gpsSourceRemeasurement WSA RMS of axes of ellipse fit in 2nd epoch H2 real 4 pixels -0.9999995e9 MORPH_PARAM

h2_2HallMag gpsSource WSA Point source H2 (2nd epoch) mag real 4 mag -0.9999995e9 PHOT_MAG

h2_2HallMagErr gpsSource WSA Error in point source H2 (2nd epoch) mag real 4 mag -0.9999995e9 ERROR

h2_2Mag gpsSourceRemeasurement WSA 2nd epoch H2 mag (as appropriate for this merged source) real 4 mag -0.9999995e9 PHOT_MAG

h2_2MagErr gpsSourceRemeasurement WSA Error in 2nd epoch H2 mag real 4 mag -0.9999995e9 ERROR

h2_2mfID gpsMergeLog WSA the UID of the relevant H2 multiframe (ep2) bigint 8 ID_FRAME

h2_2ObjID gpsSource WSA the UID of the 2nd H2 detection bigint 8 -99999999 ID_NUMBER

h2_2ObjID gpsSourceRemeasurement WSA the UID of the 2nd H2 remeasurement bigint 8 -99999999 ID_NUMBER

h2_2PA gpsSource, gpsSourceRemeasurement WSA ellipse fit celestial orientation in 2nd epoch H2 real 4 Degrees -0.9999995e9 POS_POS-ANG

h2_2PetroMag gpsSource WSA Extended source H2 (2nd epoch) mag (Petrosian) real 4 mag -0.9999995e9 PHOT_MAG

h2_2PetroMagErr gpsSource WSA Error in extended source H2 (2nd epoch) mag (Petrosian) real 4 mag -0.9999995e9 ERROR

h2_2ppErrBits gpsSource, gpsSourceRemeasurement WSA additional WFAU post-processing error bits in 2nd epoch H2 int 4 -99999999 CODE_MISC

h2_2PsfMag gpsSource WSA Point source profile-fitted H2 (2nd epoch) mag real 4 mag -0.9999995e9 PHOT_MAG

h2_2PsfMagErr gpsSource WSA Error in point source profile-fitted H2 (2nd epoch) mag real 4 mag -0.9999995e9 ERROR

h2_2SeqNum gpsSource WSA the running number of the 2nd H2 detection int 4 -99999999 ID_NUMBER

h2_2SeqNum gpsSourceRemeasurement WSA the running number of the 2nd H2 remeasurement int 4 -99999999 ID_NUMBER

h2_2SerMag2D gpsSource WSA Extended source H2 mag (profile-fitted) real 4 mag -0.9999995e9 PHOT_MAG

h2_2SerMag2DErr gpsSource WSA Error in extended source H2 (2nd epoch) mag (profile-fitted) real 4 mag -0.9999995e9 ERROR

h2_2Xi gpsSource WSA 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.

h2_3AperMag3 gpsSource WSA Extended source H2 (3rd epoch) mag (2.0 arcsec aperture diameter) real 4 mag -0.9999995e9 PHOT_MAG

h2_3AperMag3Err gpsSource WSA Error in extended source H2 (3rd epoch) mag (2.0 arcsec aperture diameter) real 4 mag -0.9999995e9 ERROR

h2_3AperMag4 gpsSource WSA Extended source H2 (3rd epoch) mag (2.8 arcsec aperture diameter) real 4 mag -0.9999995e9 PHOT_MAG

h2_3AperMag4Err gpsSource WSA Error in extended source H2 (3rd epoch) mag (2.8 arcsec aperture diameter) real 4 mag -0.9999995e9 ERROR

h2_3AperMag6 gpsSource WSA Extended source H2 (3rd epoch) mag (5.7 arcsec aperture diameter) real 4 mag -0.9999995e9 PHOT_MAG

h2_3AperMag6Err gpsSource WSA Error in extended source H2 (3rd epoch) mag (5.7 arcsec aperture diameter) real 4 mag -0.9999995e9 ERROR

h2_3Class gpsSource, gpsSourceRemeasurement WSA discrete image classification flag in 3rd epoch H2 smallint 2 -9999 CLASS_MISC

h2_3ClassStat gpsSource, gpsSourceRemeasurement WSA N(0,1) stellarness-of-profile statistic in 3rd epoch H2 real 4 -0.9999995e9 STAT_PROP

h2_3Deblend gpsSource, gpsSourceRemeasurement WSA flag indicating parent/child relation in 3rd epoch H2 int 4 -99999999 CODE_MISC

h2_3Ell gpsSource, gpsSourceRemeasurement WSA 1-b/a, where a/b=semi-major/minor axes in 3rd epoch H2 real 4 -0.9999995e9 PHYS_ELLIPTICITY

h2_3eNum gpsMergeLog WSA the extension number of this H2 frame (ep3) tinyint 1 NUMBER

h2_3ErrBits gpsSource, gpsSourceRemeasurement WSA processing warning/error bitwise flags in 3rd epoch H2 int 4 -99999999 CODE_MISC

h2_3Eta gpsSource WSA 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.

h2_3Gausig gpsSource, gpsSourceRemeasurement WSA RMS of axes of ellipse fit in 3rd epoch H2 real 4 pixels -0.9999995e9 MORPH_PARAM

h2_3HallMag gpsSource WSA Point source H2 (3rd epoch) mag real 4 mag -0.9999995e9 PHOT_MAG

h2_3HallMagErr gpsSource WSA Error in point source H2 (3rd epoch) mag real 4 mag -0.9999995e9 ERROR

h2_3Mag gpsSourceRemeasurement WSA 3rd epoch H2 mag (as appropriate for this merged source) real 4 mag -0.9999995e9 PHOT_MAG

h2_3MagErr gpsSourceRemeasurement WSA Error in 3rd epoch H2 mag real 4 mag -0.9999995e9 ERROR

h2_3mfID gpsMergeLog WSA the UID of the relevant H2 multiframe (ep3) bigint 8 ID_FRAME

h2_3ObjID gpsSource WSA the UID of the 3rd H2 detection bigint 8 -99999999 ID_NUMBER

h2_3ObjID gpsSourceRemeasurement WSA the UID of the 3rd H2 remeasurement bigint 8 -99999999 ID_NUMBER

h2_3PA gpsSource, gpsSourceRemeasurement WSA ellipse fit celestial orientation in 3rd epoch H2 real 4 Degrees -0.9999995e9 POS_POS-ANG

h2_3PetroMag gpsSource WSA Extended source H2 (3rd epoch) mag (Petrosian) real 4 mag -0.9999995e9 PHOT_MAG

h2_3PetroMagErr gpsSource WSA Error in extended source H2 (3rd epoch) mag (Petrosian) real 4 mag -0.9999995e9 ERROR

h2_3ppErrBits gpsSource, gpsSourceRemeasurement WSA additional WFAU post-processing error bits in 3rd epoch H2 int 4 -99999999 CODE_MISC

h2_3PsfMag gpsSource WSA Point source profile-fitted H2 (3rd epoch) mag real 4 mag -0.9999995e9 PHOT_MAG

h2_3PsfMagErr gpsSource WSA Error in point source profile-fitted H2 (3rd epoch) mag real 4 mag -0.9999995e9 ERROR

h2_3SeqNum gpsSource WSA the running number of the 3rd H2 detection int 4 -99999999 ID_NUMBER

h2_3SeqNum gpsSourceRemeasurement WSA the running number of the 3rd H2 remeasurement int 4 -99999999 ID_NUMBER

h2_3SerMag2D gpsSource WSA Extended source H2 mag (profile-fitted) real 4 mag -0.9999995e9 PHOT_MAG

h2_3SerMag2DErr gpsSource WSA Error in extended source H2 (3rd epoch) mag (profile-fitted) real 4 mag -0.9999995e9 ERROR

h2_3Xi gpsSource WSA 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.

h2AperMag3 calSourceEpochs, calSourceMeans, commSource WSA Extended source H2 mag (2.0 arcsec aperture diameter) real 4 mag -0.9999995e9 PHOT_MAG

h2AperMag3Err calSourceEpochs, calSourceMeans, commSource WSA Error in extended source H2 mag (2.0 arcsec aperture diameter) real 4 mag -0.9999995e9 ERROR

h2AperMag4 calSourceEpochs, calSourceMeans, commSource WSA Extended source H2 mag (2.8 arcsec aperture diameter) real 4 mag -0.9999995e9 PHOT_MAG

h2AperMag4Err calSourceEpochs, calSourceMeans, commSource WSA Error in extended source H2 mag (2.8 arcsec aperture diameter) real 4 mag -0.9999995e9 ERROR

h2AperMag6 calSourceEpochs, calSourceMeans, commSource WSA Extended source H2 mag (5.7 arcsec aperture diameter) real 4 mag -0.9999995e9 PHOT_MAG

h2AperMag6Err calSourceEpochs, calSourceMeans, commSource WSA Error in extended source H2 mag (5.7 arcsec aperture diameter) real 4 mag -0.9999995e9 ERROR

h2Class calSourceEpochs, commSource WSA discrete image classification flag in H2 smallint 2 -9999 CLASS_MISC

h2ClassStat calSourceEpochs, commSource WSA N(0,1) stellarness-of-profile statistic in H2 real 4 -0.9999995e9 STAT_PROP

h2Deblend calSourceEpochs, commSource WSA flag indicating parent/child relation in H2 int 4 -99999999 CODE_MISC

h2Ell calSourceEpochs, commSource WSA 1-b/a, where a/b=semi-major/minor axes in H2 real 4 -0.9999995e9 PHYS_ELLIPTICITY

h2eNum calMergeLogEpochs, commMergeLog WSA the extension number of this H2 frame (ep1) tinyint 1 NUMBER

h2ErrBits calSourceEpochs, commSource WSA processing warning/error bitwise flags in H2 int 4 -99999999 CODE_MISC

h2Eta calSourceEpochs, commSource WSA 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 calSourceEpochs, commSource WSA RMS of axes of ellipse fit in H2 real 4 pixels -0.9999995e9 MORPH_PARAM

h2HallMag calSourceEpochs, calSourceMeans, commSource WSA Point source H2 mag real 4 mag -0.9999995e9 PHOT_MAG

h2HallMagErr calSourceEpochs, calSourceMeans, commSource WSA Error in point source H2 mag real 4 mag -0.9999995e9 ERROR

h2Mag CurrentStdStarInfo, PreviousStdStarInfo WSA H2 band total magnitude of star (from external sources if primary) real 4 mag PHOT_INT-MAG

h2MagErr CurrentStdStarInfo, PreviousStdStarInfo WSA H2 band magnitude error of star real 4 mag ERROR

h2mfID calMergeLogEpochs, commMergeLog WSA the UID of the relevant H2 multiframe (ep1) bigint 8 ID_FRAME

h2ObjID calSourceEpochs, commSource WSA the UID of the H2 detection bigint 8 -99999999 ID_NUMBER

h2PA calSourceEpochs, commSource WSA ellipse fit celestial orientation in H2 real 4 Degrees -0.9999995e9 POS_POS-ANG

h2PetroMag calSourceEpochs, calSourceMeans, commSource WSA Extended source H2 mag (Petrosian) real 4 mag -0.9999995e9 PHOT_MAG

h2PetroMagErr calSourceEpochs, calSourceMeans, commSource WSA Error in extended source H2 mag (Petrosian) real 4 mag -0.9999995e9 ERROR

h2ppErrBits calSourceEpochs, commSource WSA additional WFAU post-processing error bits in H2 int 4 -99999999 CODE_MISC

h2PsfMag calSourceEpochs, calSourceMeans, commSource WSA Point source profile-fitted H2 mag real 4 mag -0.9999995e9 PHOT_MAG

h2PsfMagErr calSourceEpochs, calSourceMeans, commSource WSA Error in point source profile-fitted H2 mag real 4 mag -0.9999995e9 ERROR

h2SeqNum calSourceEpochs, commSource WSA the running number of the H2 detection int 4 -99999999 ID_NUMBER

h2SerMag2D calSourceEpochs, calSourceMeans, commSource WSA Extended source H2 mag (profile-fitted) real 4 mag -0.9999995e9 PHOT_MAG

h2SerMag2DErr calSourceEpochs, calSourceMeans, commSource WSA Error in extended source H2 mag (profile-fitted) real 4 mag -0.9999995e9 ERROR

h2Xi calSourceEpochs, commSource WSA 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.

h_2mrat twomass_scn 2MASS H-band average 2nd image moment ratio. real 4 FIT_PARAM_VALUE

h_5sig_ba twomass_xsc 2MASS H minor/major axis ratio fit to the 5-sigma isophote. real 4 PHYS_AXIS-RATIO

h_5sig_phi twomass_xsc 2MASS H angle to 5-sigma major axis (E of N). smallint 2 degrees ERROR

h_5surf twomass_xsc 2MASS H central surface brightness (r<=5). real 4 mag PHOT_SB_GENERAL

h_ba twomass_xsc 2MASS H minor/major axis ratio fit to the 3-sigma isophote. real 4 PHYS_AXIS-RATIO

h_back twomass_xsc 2MASS H coadd median background. real 4 CODE_MISC

h_bisym_chi twomass_xsc 2MASS H bi-symmetric cross-correlation chi. real 4 FIT_PARAM_VALUE

h_bisym_rat twomass_xsc 2MASS H bi-symmetric flux ratio. real 4 PHOT_FLUX_RATIO

h_bndg_amp twomass_xsc 2MASS H banding maximum FT amplitude on this side of coadd. real 4 DN FIT_PARAM_VALUE

h_bndg_per twomass_xsc 2MASS H banding Fourier Transf. period on this side of coadd. int 4 arcsec FIT_PARAM_VALUE

h_cmsig twomass_psc 2MASS Corrected photometric uncertainty for the default H-band magnitude. real 4 mag SPECT_FLUX_VALUE

h_con_indx twomass_xsc 2MASS H concentration index r_75%/r_25%. real 4 PHYS_CONCENT_INDEX

h_d_area twomass_xsc 2MASS H 5-sigma to 3-sigma differential area. smallint 2 FIT_RESIDUAL

h_flg_10 twomass_xsc 2MASS H confusion flag for 10 arcsec circular ap. mag. smallint 2 CODE_MISC

h_flg_15 twomass_xsc 2MASS H confusion flag for 15 arcsec circular ap. mag. smallint 2 CODE_MISC

h_flg_20 twomass_xsc 2MASS H confusion flag for 20 arcsec circular ap. mag. smallint 2 CODE_MISC

h_flg_25 twomass_xsc 2MASS H confusion flag for 25 arcsec circular ap. mag. smallint 2 CODE_MISC

h_flg_30 twomass_xsc 2MASS H confusion flag for 30 arcsec circular ap. mag. smallint 2 CODE_MISC

h_flg_40 twomass_xsc 2MASS H confusion flag for 40 arcsec circular ap. mag. smallint 2 CODE_MISC

h_flg_5 twomass_xsc 2MASS H confusion flag for 5 arcsec circular ap. mag. smallint 2 CODE_MISC

h_flg_50 twomass_xsc 2MASS H confusion flag for 50 arcsec circular ap. mag. smallint 2 CODE_MISC

h_flg_60 twomass_xsc 2MASS H confusion flag for 60 arcsec circular ap. mag. smallint 2 CODE_MISC

h_flg_7 twomass_xsc 2MASS H confusion flag for 7 arcsec circular ap. mag. smallint 2 CODE_MISC

h_flg_70 twomass_xsc 2MASS H confusion flag for 70 arcsec circular ap. mag. smallint 2 CODE_MISC

h_flg_c twomass_xsc 2MASS H confusion flag for Kron circular mag. smallint 2 CODE_MISC

h_flg_e twomass_xsc 2MASS H confusion flag for Kron elliptical mag. smallint 2 CODE_MISC

h_flg_fc twomass_xsc 2MASS H confusion flag for fiducial Kron circ. mag. smallint 2 CODE_MISC

h_flg_fe twomass_xsc 2MASS H confusion flag for fiducial Kron ell. mag. smallint 2 CODE_MISC

h_flg_i20c twomass_xsc 2MASS H confusion flag for 20mag/sq." iso. circ. mag. smallint 2 CODE_MISC

h_flg_i20e twomass_xsc 2MASS H confusion flag for 20mag/sq." iso. ell. mag. smallint 2 CODE_MISC

h_flg_i21c twomass_xsc 2MASS H confusion flag for 21mag/sq." iso. circ. mag. smallint 2 CODE_MISC

h_flg_i21e twomass_xsc 2MASS H confusion flag for 21mag/sq." iso. ell. mag. smallint 2 CODE_MISC

h_flg_j21fc twomass_xsc 2MASS H confusion flag for 21mag/sq." iso. fid. circ. mag. smallint 2 CODE_MISC

h_flg_j21fe twomass_xsc 2MASS H confusion flag for 21mag/sq." iso. fid. ell. mag. smallint 2 CODE_MISC

h_flg_k20fc twomass_xsc 2MASS H confusion flag for 20mag/sq." iso. fid. circ. mag. smallint 2 CODE_MISC

h_flg_k20fe twomass_xsc 2MASS H confusion flag for 20mag/sq." iso. fid. ell. mag. smallint 2 CODE_MISC

h_m twomass_psc 2MASS Default H-band magnitude real 4 mag SPECT_FLUX_VALUE

h_m_10 twomass_xsc 2MASS H 10 arcsec radius circular aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_15 twomass_xsc 2MASS H 15 arcsec radius circular aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_20 twomass_xsc 2MASS H 20 arcsec radius circular aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_25 twomass_xsc 2MASS H 25 arcsec radius circular aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_30 twomass_xsc 2MASS H 30 arcsec radius circular aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_40 twomass_xsc 2MASS H 40 arcsec radius circular aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_5 twomass_xsc 2MASS H 5 arcsec radius circular aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_50 twomass_xsc 2MASS H 50 arcsec radius circular aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_60 twomass_xsc 2MASS H 60 arcsec radius circular aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_7 twomass_xsc 2MASS H 7 arcsec radius circular aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_70 twomass_xsc 2MASS H 70 arcsec radius circular aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_c twomass_xsc 2MASS H Kron circular aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_e twomass_xsc 2MASS H Kron elliptical aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_ext twomass_xsc 2MASS H mag from fit extrapolation. real 4 mag SPECT_FLUX_VALUE

h_m_fc twomass_xsc 2MASS H fiducial Kron circular magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_fe twomass_xsc 2MASS H fiducial Kron ell. mag aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_i20c twomass_xsc 2MASS H 20mag/sq." isophotal circular ap. magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_i20e twomass_xsc 2MASS H 20mag/sq." isophotal elliptical ap. magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_i21c twomass_xsc 2MASS H 21mag/sq." isophotal circular ap. magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_i21e twomass_xsc 2MASS H 21mag/sq." isophotal elliptical ap. magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_j21fc twomass_xsc 2MASS H 21mag/sq." isophotal fiducial circ. ap. mag. real 4 mag SPECT_FLUX_VALUE

h_m_j21fe twomass_xsc 2MASS H 21mag/sq." isophotal fiducial ell. ap. magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_k20fc twomass_xsc 2MASS H 20mag/sq." isophotal fiducial circ. ap. mag. real 4 mag SPECT_FLUX_VALUE

h_m_k20fe twomass_xsc 2MASS H 20mag/sq." isophotal fiducial ell. ap. magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_stdap twomass_psc 2MASS H-band "standard" aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_m_sys twomass_xsc 2MASS H system photometry magnitude. real 4 mag SPECT_FLUX_VALUE

h_mnsurfb_eff twomass_xsc 2MASS H mean surface brightness at the half-light radius. real 4 mag PHOT_SB_GENERAL

h_msig_10 twomass_xsc 2MASS H 1-sigma uncertainty in 10 arcsec circular ap. mag. real 4 mag ERROR

h_msig_15 twomass_xsc 2MASS H 1-sigma uncertainty in 15 arcsec circular ap. mag. real 4 mag ERROR

h_msig_20 twomass_xsc 2MASS H 1-sigma uncertainty in 20 arcsec circular ap. mag. real 4 mag ERROR

h_msig_25 twomass_xsc 2MASS H 1-sigma uncertainty in 25 arcsec circular ap. mag. real 4 mag ERROR

h_msig_30 twomass_xsc 2MASS H 1-sigma uncertainty in 30 arcsec circular ap. mag. real 4 mag ERROR

h_msig_40 twomass_xsc 2MASS H 1-sigma uncertainty in 40 arcsec circular ap. mag. real 4 mag ERROR

h_msig_5 twomass_xsc 2MASS H 1-sigma uncertainty in 5 arcsec circular ap. mag. real 4 mag ERROR

h_msig_50 twomass_xsc 2MASS H 1-sigma uncertainty in 50 arcsec circular ap. mag. real 4 mag ERROR

h_msig_60 twomass_xsc 2MASS H 1-sigma uncertainty in 60 arcsec circular ap. mag. real 4 mag ERROR

h_msig_7 twomass_xsc 2MASS H 1-sigma uncertainty in 7 arcsec circular ap. mag. real 4 mag ERROR

h_msig_70 twomass_xsc 2MASS H 1-sigma uncertainty in 70 arcsec circular ap. mag. real 4 mag ERROR

h_msig_c twomass_xsc 2MASS H 1-sigma uncertainty in Kron circular mag. real 4 mag ERROR

h_msig_e twomass_xsc 2MASS H 1-sigma uncertainty in Kron elliptical mag. real 4 mag ERROR

h_msig_ext twomass_xsc 2MASS H 1-sigma uncertainty in mag from fit extrapolation. real 4 mag ERROR

h_msig_fc twomass_xsc 2MASS H 1-sigma uncertainty in fiducial Kron circ. mag. real 4 mag ERROR

h_msig_fe twomass_xsc 2MASS H 1-sigma uncertainty in fiducial Kron ell. mag. real 4 mag ERROR

h_msig_i20c twomass_xsc 2MASS H 1-sigma uncertainty in 20mag/sq." iso. circ. mag. real 4 mag ERROR

h_msig_i20e twomass_xsc 2MASS H 1-sigma uncertainty in 20mag/sq." iso. ell. mag. real 4 mag ERROR

h_msig_i21c twomass_xsc 2MASS H 1-sigma uncertainty in 21mag/sq." iso. circ. mag. real 4 mag ERROR

h_msig_i21e twomass_xsc 2MASS H 1-sigma uncertainty in 21mag/sq." iso. ell. mag. real 4 mag ERROR

h_msig_j21fc twomass_xsc 2MASS H 1-sigma uncertainty in 21mag/sq." iso.fid.circ.mag. real 4 mag ERROR

h_msig_j21fe twomass_xsc 2MASS H 1-sigma uncertainty in 21mag/sq." iso.fid.ell.mag. real 4 mag ERROR

h_msig_k20fc twomass_xsc 2MASS H 1-sigma uncertainty in 20mag/sq." iso.fid.circ. mag. real 4 mag ERROR

h_msig_k20fe twomass_xsc 2MASS H 1-sigma uncertainty in 20mag/sq." iso.fid.ell.mag. real 4 mag ERROR

h_msig_stdap twomass_psc 2MASS Uncertainty in the H-band standard aperture magnitude. real 4 mag SPECT_FLUX_VALUE

h_msig_sys twomass_xsc 2MASS H 1-sigma uncertainty in system photometry mag. real 4 mag ERROR

h_msigcom twomass_psc 2MASS Combined, or total photometric uncertainty for the default H-band magnitude. real 4 mag SPECT_FLUX_VALUE

h_msnr10 twomass_scn 2MASS The estimated H-band magnitude at which SNR=10 is achieved for this scan. real 4 mag SPECT_FLUX_VALUE

h_n_snr10 twomass_scn 2MASS Number of point sources at H-band with SNR>10 (instrumental mag <=15.1) int 4 NUMBER

h_pchi twomass_xsc 2MASS H chi^2 of fit to rad. profile (LCSB: alpha scale len). real 4 FIT_PARAM_VALUE

h_peak twomass_xsc 2MASS H peak pixel brightness. real 4 mag PHOT_SB_GENERAL

h_perc_darea twomass_xsc 2MASS H 5-sigma to 3-sigma percent area change. smallint 2 FIT_PARAM

h_phi twomass_xsc 2MASS H angle to 3-sigma major axis (E of N). smallint 2 degrees POS_POS-ANG

h_psfchi twomass_psc 2MASS Reduced chi-squared goodness-of-fit value for the H-band profile-fit photometry made on the 1.3 s "Read_2" exposures. real 4 FIT_PARAM_VALUE

h_psp twomass_scn 2MASS H-band photometric sensitivity paramater (PSP). real 4 INST_SENSITIVITY

h_pts_noise twomass_scn 2MASS Base-10 logarithm of the mode of the noise distribution for all point source detections in the scan, where the noise is estimated from the measured H-band photometric errors and is expressed in units of mJy. real 4 INST_NOISE

h_r_c twomass_xsc 2MASS H Kron circular aperture radius. real 4 arcsec EXTENSION_RAD

h_r_e twomass_xsc 2MASS H Kron elliptical aperture semi-major axis. real 4 arcsec EXTENSION_RAD

h_r_eff twomass_xsc 2MASS H half-light (integrated half-flux point) radius. real 4 arcsec EXTENSION_RAD

h_r_i20c twomass_xsc 2MASS H 20mag/sq." isophotal circular aperture radius. real 4 arcsec EXTENSION_RAD

h_r_i20e twomass_xsc 2MASS H 20mag/sq." isophotal elliptical ap. semi-major axis. real 4 arcsec EXTENSION_RAD

h_r_i21c twomass_xsc 2MASS H 21mag/sq." isophotal circular aperture radius. real 4 arcsec EXTENSION_RAD

h_r_i21e twomass_xsc 2MASS H 21mag/sq." isophotal elliptical ap. semi-major axis. real 4 arcsec EXTENSION_RAD

h_resid_ann twomass_xsc 2MASS H residual annulus background median. real 4 DN CODE_MISC

h_sc_1mm twomass_xsc 2MASS H 1st moment (score) (LCSB: super blk 2,4,8 SNR). real 4 CODE_MISC

h_sc_2mm twomass_xsc 2MASS H 2nd moment (score) (LCSB: SNRMAX - super SNR max). real 4 CODE_MISC

h_sc_msh twomass_xsc 2MASS H median shape score. real 4 CODE_MISC

h_sc_mxdn twomass_xsc 2MASS H mxdn (score) (LCSB: BSNR - block/smoothed SNR). real 4 CODE_MISC

h_sc_r1 twomass_xsc 2MASS H r1 (score). real 4 CODE_MISC

h_sc_r23 twomass_xsc 2MASS H r23 (score) (LCSB: TSNR - integrated SNR for r=15). real 4 CODE_MISC

h_sc_sh twomass_xsc 2MASS H shape (score). real 4 CODE_MISC

h_sc_vint twomass_xsc 2MASS H vint (score). real 4 CODE_MISC

h_sc_wsh twomass_xsc 2MASS H wsh (score) (LCSB: PSNR - peak raw SNR). real 4 CODE_MISC

h_seetrack twomass_xsc 2MASS H band seetracking score. real 4 CODE_MISC

h_sh0 twomass_xsc 2MASS H ridge shape (LCSB: BSNR limit). real 4 FIT_PARAM

h_shape_avg twomass_scn 2MASS H-band average seeing shape for scan. real 4 INST_SEEING

h_shape_rms twomass_scn 2MASS RMS-error of H-band average seeing shape. real 4 INST_SEEING

h_sig_sh0 twomass_xsc 2MASS H ridge shape sigma (LCSB: B2SNR limit). real 4 FIT_PARAM

h_snr twomass_psc 2MASS H-band "scan" signal-to-noise ratio. real 4 mag INST_NOISE

h_subst2 twomass_xsc 2MASS H residual background #2 (score). real 4 CODE_MISC

h_zp_ap twomass_scn 2MASS Photometric zero-point for H-band aperture photometry. real 4 mag PHOT_ZP

h_zperr_ap twomass_scn 2MASS RMS-error of zero-point for H-band aperture photometry real 4 mag FIT_ERROR

ha twomass_scn 2MASS Hour angle at beginning of scan. float 8 hr POS_POS-ANG

hallFlux calDetection, commDetection, dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA 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 calDetection, commDetection, dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA error on Hall flux {catalogue TType keyword: Hall_flux_err} real 4 ADU ERROR

hallMag calDetection, commDetection, dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Calibrated magnitude within circular aperture r_hall real 4 mag PHOT_INT-MAG

hallMagErr calDetection, commDetection, dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA Calibrated error on Hall magnitude real 4 mag ERROR

hallRad calDetection, commDetection, dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA r_h image scale radius eg. Hall & Mackay 1984 MNRAS 210 979 {catalogue TType keyword: Hall_radius} real 4 pixels EXTENSION_RAD

haloRadius JunkDetection SSA Vertical half-major axis of halo ellipse real 4 arcsec 0.0 EXTENSION_RAD

hAperMag3 calSourceEpochs, calSourceMeans, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA Extended source H mag (2.0 arcsec aperture diameter) real 4 mag -0.9999995e9 PHOT_MAG

hAperMag3Err calSourceEpochs, calSourceMeans, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA Error in extended source H mag (2.0 arcsec aperture diameter) real 4 mag -0.9999995e9 ERROR

hAperMag4 calSourceEpochs, calSourceMeans, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA Extended source H mag (2.8 arcsec aperture diameter) real 4 mag -0.9999995e9 PHOT_MAG

hAperMag4Err calSourceEpochs, calSourceMeans, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA Error in extended source H mag (2.8 arcsec aperture diameter) real 4 mag -0.9999995e9 ERROR

hAperMag6 calSourceEpochs, calSourceMeans, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA Extended source H mag (5.7 arcsec aperture diameter) real 4 mag -0.9999995e9 PHOT_MAG

hAperMag6Err calSourceEpochs, calSourceMeans, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA Error in extended source H mag (5.7 arcsec aperture diameter) real 4 mag -0.9999995e9 ERROR

hClass calSourceEpochs, commSource, dxsSource, dxsSourceRemeasurement, gcsSource, gcsSourceRemeasurement, gpsSource, gpsSourceRemeasurement, lasSource, lasSourceRemeasurement, udsSource, udsSourceRemeasurement WSA discrete image classification flag in H smallint 2 -9999 CLASS_MISC

hClassStat calSourceEpochs, commSource, dxsSource, dxsSourceRemeasurement, gcsSource, gcsSourceRemeasurement, gpsSource, gpsSourceRemeasurement, lasSource, lasSourceRemeasurement, udsSource, udsSourceRemeasurement WSA N(0,1) stellarness-of-profile statistic in H real 4 -0.9999995e9 STAT_PROP

hDeblend calSourceEpochs, commSource, dxsSource, dxsSourceRemeasurement, gcsSource, gcsSourceRemeasurement, gpsSource, gpsSourceRemeasurement, lasSource, lasSourceRemeasurement, udsSource, udsSourceRemeasurement WSA flag indicating parent/child relation in H int 4 -99999999 CODE_MISC

hdtFile Multiframe WSA Name of global hdt file {image primary HDU keyword: HDTFILE} varchar 32 NONE

hdtFileExt MultiframeDetector WSA Name of camera-specific hdt file {image extension keyword: HDTFILE2} varchar 32 NONE ??

hEll calSourceEpochs, commSource, dxsSource, dxsSourceRemeasurement, gcsSource, gcsSourceRemeasurement, gpsSource, gpsSourceRemeasurement, lasSource, lasSourceRemeasurement, udsSource, udsSourceRemeasurement WSA 1-b/a, where a/b=semi-major/minor axes in H real 4 -0.9999995e9 PHYS_ELLIPTICITY

hemis twomass_psc 2MASS Hemisphere code for the TWOMASS Observatory from which this source was observed. varchar 1 OBS_CODE

hemis twomass_scn 2MASS Observatory from which data were obtained: "n" = north = Mt. Hopkins, "s" = south = Cerro Tololo. varchar 1 OBS_CODE

hemis twomass_xsc 2MASS hemisphere (N/S) of observation. "n" = North/Mt. Hopkins; "s" = South/CTIO. varchar 1 OBS_CODE

heNum calMergeLogEpochs, commMergeLog, dxsMergeLog, gcsMergeLog, gpsMergeLog, lasMergeLog, udsMergeLog WSA the extension number of this H frame tinyint 1 NUMBER

hErrBits calSourceEpochs, commSource, dxsSource, dxsSourceRemeasurement, gcsSource, gcsSourceRemeasurement, gpsSource, gpsSourceRemeasurement, lasSource, lasSourceRemeasurement, udsSource, udsSourceRemeasurement WSA processing warning/error bitwise flags in H int 4 -99999999 CODE_MISC

hEta calSourceEpochs, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA 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 calSourceEpochs, commSource, dxsSource, dxsSourceRemeasurement, gcsSource, gcsSourceRemeasurement, gpsSource, gpsSourceRemeasurement, lasSource, lasSourceRemeasurement, udsSource, udsSourceRemeasurement WSA RMS of axes of ellipse fit in H real 4 pixels -0.9999995e9 MORPH_PARAM

hgl twomass_scn 2MASS Special flag indicating whether or not this scan has a single-frame H-band electronic glitch. smallint 2 CODE_MISC

hHallMag calSourceEpochs, calSourceMeans, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA Point source H mag real 4 mag -0.9999995e9 PHOT_MAG

hHallMagErr calSourceEpochs, calSourceMeans, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA Error in point source H mag real 4 mag -0.9999995e9 ERROR

hMag CurrentStdStarInfo, PreviousStdStarInfo WSA H band total magnitude of star (from external sources if primary) real 4 mag PHOT_INT-MAG

hMag dxsSourceRemeasurement, gcsSourceRemeasurement, gpsSourceRemeasurement, lasSourceRemeasurement, udsSourceRemeasurement WSA H mag (as appropriate for this merged source) real 4 mag -0.9999995e9 PHOT_MAG

hMagErr CurrentStdStarInfo, PreviousStdStarInfo WSA H band magnitude error of star real 4 mag ERROR

hMagErr dxsSourceRemeasurement, gcsSourceRemeasurement, gpsSourceRemeasurement, lasSourceRemeasurement, udsSourceRemeasurement WSA Error in H mag real 4 mag -0.9999995e9 ERROR

hmfID calMergeLogEpochs, commMergeLog, dxsMergeLog, udsMergeLog WSA the UID of the relevant H combiframe bigint 8 ID_FRAME

hmfID gcsMergeLog, gpsMergeLog, lasMergeLog WSA the UID of the relevant H multiframe bigint 8 ID_FRAME

hmk dxsSourceRemeasurement, lasSourceRemeasurement, udsSourceRemeasurement WSA Default colour H-K (using appropriate mags) real 4 mag PHOT_COLOR

hmk_1 gcsSourceRemeasurement WSA Default colour H-K1 (using appropriate mags) real 4 mag PHOT_COLOR

hmk_1 gpsSourceRemeasurement WSA Default colour H-K (using appropriate mags) real 4 mag PHOT_COLOR

hmk_1Err gcsSourceRemeasurement WSA Error on colour H-K1 real 4 mag ERROR

hmk_1Err gpsSourceRemeasurement WSA Error on colour H-K real 4 mag ERROR

hmk_1Ext gcsSource, gpsSource WSA Extended source colour H-K (using appropriate mags) 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.

hmk_1ExtErr gcsSource, gpsSource WSA Error on 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.

hmk_1Pnt gcsSource, gpsSource WSA Point source colour H-K (using appropriate mags) 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.

hmk_1PntErr gcsSource, gpsSource WSA Error on 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.

hmkErr dxsSourceRemeasurement, lasSourceRemeasurement, udsSourceRemeasurement WSA Error on colour H-K real 4 mag ERROR

hmkExt calSourceEpochs, calSourceMeans, commSource, dxsSource, udsSource WSA Extended source colour H-K (using appropriate mags) 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.

hmkExt lasSource WSA 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 calSourceEpochs, calSourceMeans, commSource, dxsSource, udsSource WSA Error on 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.

hmkExtErr lasSource WSA 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 calSourceEpochs, calSourceMeans, commSource, dxsSource, udsSource WSA Point source colour H-K (using appropriate mags) 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.

hmkPnt lasSource WSA 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 calSourceEpochs, calSourceMeans, commSource, dxsSource, udsSource WSA Error on 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.

hmkPntErr lasSource WSA 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 calSourceEpochs, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA the UID of the H detection bigint 8 -99999999 ID_NUMBER

hObjID dxsSourceRemeasurement, gcsSourceRemeasurement, gpsSourceRemeasurement, lasSourceRemeasurement, udsSourceRemeasurement WSA the UID of the H remeasurement bigint 8 -99999999 ID_NUMBER

hourAngle Multiframe WSA Hour angle {image primary HDU keyword: HABASE} real 4 degrees -0.9999995e9

hPA calSourceEpochs, commSource, dxsSource, dxsSourceRemeasurement, gcsSource, gcsSourceRemeasurement, gpsSource, gpsSourceRemeasurement, lasSource, lasSourceRemeasurement, udsSource, udsSourceRemeasurement WSA ellipse fit celestial orientation in H real 4 Degrees -0.9999995e9 POS_POS-ANG

hPetroMag calSourceEpochs, calSourceMeans, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA Extended source H mag (Petrosian) real 4 mag -0.9999995e9 PHOT_MAG

hPetroMagErr calSourceEpochs, calSourceMeans, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA Error in extended source H mag (Petrosian) real 4 mag -0.9999995e9 ERROR

hppErrBits calSourceEpochs, commSource, dxsSource, dxsSourceRemeasurement, gcsSource, gcsSourceRemeasurement, gpsSource, gpsSourceRemeasurement, lasSource, lasSourceRemeasurement, udsSource, udsSourceRemeasurement WSA additional WFAU post-processing error bits in H int 4 -99999999 CODE_MISC

hPsfMag calSourceEpochs, calSourceMeans, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA Point source profile-fitted H mag real 4 mag -0.9999995e9 PHOT_MAG

hPsfMagErr calSourceEpochs, calSourceMeans, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA Error in point source profile-fitted H mag real 4 mag -0.9999995e9 ERROR

hr1 rosat_bsc, rosat_fsc ROSAT hardness ratio 1 float 8 SPECT_HARDNESS-RATIO

hr2 rosat_bsc, rosat_fsc ROSAT hardness ratio 2 float 8 SPECT_HARDNESS-RATIO

hry twomass_scn 2MASS Flag indicating the H-band array configuration for the camera. smallint 2 CODE_MISC

hsdFlag_100 iras_psc IRAS Source is located in high source density bin (100 micron). tinyint 1 REMARKS

hsdFlag_12 iras_psc IRAS Source is located in high source density bin (12 micron). tinyint 1 REMARKS

hsdFlag_25 iras_psc IRAS Source is located in high source density bin (25 micron). tinyint 1 REMARKS

hsdFlag_60 iras_psc IRAS Source is located in high source density bin (60 micron). tinyint 1 REMARKS

hSeqNum calSourceEpochs, commSource, dxsSource, gcsSource, lasSource, udsSource WSA the running number of the H detection int 4 -99999999 ID_NUMBER

hSeqNum dxsSourceRemeasurement, gcsSourceRemeasurement, gpsSourceRemeasurement, lasSourceRemeasurement, udsSourceRemeasurement WSA the running number of the H remeasurement int 4 -99999999 ID_NUMBER

hSeqNum gpsSource WSA the running number of the h detection int 4 -99999999 ID_NUMBER

hSerMag2D calSourceEpochs, calSourceMeans, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA Extended source H mag (profile-fitted) real 4 mag -0.9999995e9 PHOT_MAG

hSerMag2DErr calSourceEpochs, calSourceMeans, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA Error in extended source H mag (profile-fitted) real 4 mag -0.9999995e9 ERROR

htmID CurrentAstrometry, PreviousAstrometry WSA HTM index (20 deep) of device centre bigint 8 POS_GENERAL

htmID CurrentStdStarInfo, calMergeLogEpochs, commMergeLog, dxsMergeLog, gcsMergeLog, gpsMergeLog, lasMergeLog, PreviousStdStarInfo, udsMergeLog WSA HTM index, 20 digits, for co-ordinates bigint 8 POS_GENERAL

htmID calDetection, commDetection, dxsDetection, dxsListRemeasurement, gcsDetection, gcsListRemeasurement, gpsDetection, gpsListRemeasurement, lasDetection, lasListRemeasurement, udsDetection, udsListRemeasurement WSA HTM index (20 digits) for equatorial co-ordinates bigint 8 POS_GENERAL

htmID calSourceEpochs, calSourceMeans, commSource, dxsSource, dxsSourceRemeasurement, gcsSource, gcsSourceRemeasurement, gpsSource, gpsSourceRemeasurement, lasSource, lasSourceRemeasurement, udsSource, udsSourceRemeasurement WSA HTM index, 20 digits, for co-ordinate bigint 8 POS_GENERAL

htmID firstSource FIRST HTM index, 20 digits, for co-ordinate bigint 8 POS_GENERAL

htmID iras_psc IRAS HTM index, 20 digits, for co-ordinate bigint 8 POS_GENERAL

htmID rosat_bsc, rosat_fsc ROSAT HTM index, 20 digits, for co-ordinate bigint 8 POS_GENERAL

htmID twomass_psc 2MASS HTM index, 20 digits, for co-ordinate bigint 8 POS_GENERAL

htmID twomass_scn, twomass_xsc 2MASS HTM index, 20 digits, for co-ordinate POS_GENERAL bigint 8 POS_GENERAL

htmId Detection, Source SSA Hierarchical Triangular Mesh (20-deep) of centroid bigint 8 POS_GENERAL

htmId Field SSA Hierarchical Triangular Mesh (20-deep) of nominal field centre bigint 8 POS_GENERAL

humidity Multiframe WSA Relative Humidity {image primary HDU keyword: HUMIDITY} real 4 -0.9999995e9 OBS_CONDITIONS

hXi calSourceEpochs, commSource, dxsSource, gcsSource, gpsSource, lasSource, udsSource WSA 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 Multiframe WSA Trefoil: HZ10CD {image primary HDU keyword: HZ10CD} real 4 -0.9999995e9

hz10ch Multiframe WSA Trefoil: HZ10CH {image primary HDU keyword: HZ10CH} real 4 -0.9999995e9

hz10sd Multiframe WSA Trefoil: HZ10SD {image primary HDU keyword: HZ10SD} real 4 -0.9999995e9

hz10sh Multiframe WSA Trefoil: HZ10SH {image primary HDU keyword: HZ10SH} real 4 -0.9999995e9

hz5cd Multiframe WSA Astigmatism: HZ5CD {image primary HDU keyword: HZ5CD} real 4 -0.9999995e9

hz5ch Multiframe WSA Astigmatism: HZ5CH {image primary HDU keyword: HZ5CH} real 4 -0.9999995e9

hz5sd Multiframe WSA Astigmatism: HZ5SD {image primary HDU keyword: HZ5SD} real 4 -0.9999995e9

hz5sh Multiframe WSA Astigmatism: HZ5SH {image primary HDU keyword: HZ5SH} real 4 -0.9999995e9

hz6cd Multiframe WSA Astigmatism: HZ6CD {image primary HDU keyword: HZ6CD} real 4 -0.9999995e9

hz6ch Multiframe WSA Astigmatism: HZ6CH {image primary HDU keyword: HZ6CH} real 4 -0.9999995e9

hz6sd Multiframe WSA Astigmatism: HZ6SD {image primary HDU keyword: HZ6SD} real 4 -0.9999995e9

hz6sh Multiframe WSA Astigmatism: HZ6SH {image primary HDU keyword: HZ6SH} real 4 -0.9999995e9

hz9cd Multiframe WSA Trefoil: HZ9CD {image primary HDU keyword: HZ9CD} real 4 -0.9999995e9

hz9ch Multiframe WSA Trefoil: HZ9CH {image primary HDU keyword: HZ9CH} real 4 -0.9999995e9

hz9sd Multiframe WSA Trefoil: HZ9SD {image primary HDU keyword: HZ9SD} real 4 -0.9999995e9

hz9sh Multiframe WSA Trefoil: HZ9SH {image primary HDU keyword: HZ9SH} real 4 -0.9999995e9

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