Merged, seamless extended source catalogue derived from the UKIDSS LAS |
This view defines a subset of extended sources from the UKIDSS Large Area Survey (LAS). If your science application requires a seamless, reliable selection of sources consistently classified as extended in the LAS (e.g. galaxies) then use this view. Detection is required in all bands except Y, and selection is based on discrete classification codes "Galaxy" (+1) or "Probable Galaxy" (-3). The details and SQL SELECT corresponding to this view are available here. |
Name | Type | Length | Unit | Description | Default Value | Unified Content Descriptor |
---|---|---|---|---|---|---|
sourceID | bigint | 8 | UID (unique over entire WSA via programme ID prefix) of this merged detection as assigned by merge algorithm | ID_MAIN | ||
cuEventID | int | 4 | UID of curation event giving rise to this record | REFER_CODE | ||
frameSetID | bigint | 8 | UID of the set of frames that this merged source comes from | REFER_CODE | ||
ra | float | 8 | Degrees | Celestial Right Ascension | POS_EQ_RA_MAIN | |
dec | float | 8 | Degrees | Celestial Declination | POS_EQ_DEC_MAIN | |
sigRa | real | 4 | Degrees | Uncertainty in RA | -0.9999995e9 | ERROR |
sigDec | real | 4 | Degrees | Uncertainty in Dec | -0.9999995e9 | ERROR |
epoch | float | 8 | Years | Epoch of position measurement | TIME_EPOCH | |
muRa | real | 4 | mas/yr | Proper motion in RA direction | -0.9999995e9 | POS_EQ_PMRA |
muDec | real | 4 | mas/yr | Proper motion in Dec direction | -0.9999995e9 | POS_EQ_PMDEC |
sigMuRa | real | 4 | mas/yr | Error on proper motion in RA direction | -0.9999995e9 | ERROR |
sigMuDec | real | 4 | mas/yr | Error on proper motion in Dec direction | -0.9999995e9 | ERROR |
chi2 | real | 4 | Chi-squared value of proper motion solution | -0.9999995e9 | FIT_CHI2 | |
nFrames | tinyint | 1 | No. of frames used for this proper motion measurement | 0 | NUMBER | |
cx | float | 8 | unit vector of spherical co-ordinates | POS_EQ_X | ||
cy | float | 8 | unit vector of spherical co-ordinates | POS_EQ_Y | ||
cz | float | 8 | unit vector of spherical co-ordinates | POS_EQ_Z | ||
htmID | bigint | 8 | Hierarchical Triangular Mesh (HTM) index, 20 deep, for equatorial co-ordinates | POS_GENERAL | ||
l | float | 8 | Degrees | Galactic longitude | POS_GAL_LON | |
b | float | 8 | Degrees | Galactic latitude | POS_GAL_LAT | |
lambda | float | 8 | Degrees | SDSS system spherical co-ordinate 1 | POS | |
eta | float | 8 | Degrees | SDSS system spherical co-ordinate 2 | POS | |
priOrSec | bigint | 8 | Seam code for a unique (=0) or duplicated (!=0) source (eg. flags overlap duplicates). | -99999999 | CODE_MISC | |
ymj_1Pnt | real | 4 | mag | Point source colour Y-J (using aperMag3) | -0.9999995e9 | PHOT_COLOR |
ymj_1PntErr | real | 4 | mag | Error on point source colour Y-J | -0.9999995e9 | ERROR |
j_1mhPnt | real | 4 | mag | Point source colour J-H (using aperMag3) | -0.9999995e9 | PHOT_COLOR |
j_1mhPntErr | real | 4 | mag | Error on point source colour J-H | -0.9999995e9 | ERROR |
hmkPnt | real | 4 | mag | Point source colour H-K (using aperMag3) | -0.9999995e9 | PHOT_COLOR |
hmkPntErr | real | 4 | mag | Error on point source colour H-K | -0.9999995e9 | ERROR |
ymj_1Ext | real | 4 | mag | Extended source colour Y-J (using aperMag3) | -0.9999995e9 | PHOT_COLOR |
ymj_1ExtErr | real | 4 | mag | Error on extended source colour Y-J | -0.9999995e9 | ERROR |
j_1mhExt | real | 4 | mag | Extended source colour J-H (using aperMag3) | -0.9999995e9 | PHOT_COLOR |
j_1mhExtErr | real | 4 | mag | Error on extended source colour J-H | -0.9999995e9 | ERROR |
hmkExt | real | 4 | mag | Extended source colour H-K (using aperMag3) | -0.9999995e9 | PHOT_COLOR |
hmkExtErr | real | 4 | mag | Error on extended source colour H-K | -0.9999995e9 | ERROR |
mergedClassStat | real | 4 | Merged N(0,1) stellarness-of-profile statistic | -0.9999995e9 | STAT_PROP | |
mergedClass | smallint | 2 | Class flag from available measurements (1|0|-1|-2|-3|-9=galaxy|noise|stellar|probableStar|probableGalaxy|saturated) | CODE_MISC | ||
pStar | real | 4 | Probability that the source is a star | STAT_PROP | ||
pGalaxy | real | 4 | Probability that the source is a galaxy | STAT_PROP | ||
pNoise | real | 4 | Probability that the source is noise | STAT_PROP | ||
pSaturated | real | 4 | Probability that the source is saturated | STAT_PROP | ||
eBV | real | 4 | The galactic dust extinction value measured from the Schlegel, Finkbeiner & Davis (1998) maps. This uses the correction given in Bonifacio, Monai & Beers (2000). This correction reduces the extinction value in regions of high extinction (E(B-V)>0.1) | -0.9999995e9 | ||
aY | real | 4 | mag | The galactic extinction correction in the Y band for extragalactic objects | -0.9999995e9 | |
aJ | real | 4 | mag | The galactic extinction correction in the J band for extragalactic objects | -0.9999995e9 | |
aH | real | 4 | mag | The galactic extinction correction in the H band for extragalactic objects | -0.9999995e9 | |
aK | real | 4 | mag | The galactic extinction correction in the K band for extragalactic objects | -0.9999995e9 | |
yHallMag | real | 4 | mag | Total point source Y mag | -0.9999995e9 | PHOT_MAG |
yHallMagErr | real | 4 | mag | Error in total point source Y mag | -0.9999995e9 | ERROR |
yPetroMag | real | 4 | mag | Extended source Y mag (Petrosian) | -0.9999995e9 | PHOT_MAG |
yPetroMagErr | real | 4 | mag | Error in extended source Y mag (Petrosian) | -0.9999995e9 | ERROR |
yPsfMag | real | 4 | mag | Point source profile-fitted Y mag | -0.9999995e9 | PHOT_MAG |
yPsfMagErr | real | 4 | mag | Error in point source profile-fitted Y mag | -0.9999995e9 | ERROR |
ySerMag2D | real | 4 | mag | Extended source Y mag (profile-fitted) | -0.9999995e9 | PHOT_MAG |
ySerMag2DErr | real | 4 | mag | Error in extended source Y mag (profile-fitted) | -0.9999995e9 | ERROR |
yAperMag3 | real | 4 | mag | Default point/extended source Y aperture corrected mag (2.0 arcsec aperture diameter) | -0.9999995e9 | PHOT_MAG |
yAperMag3Err | real | 4 | mag | Error in default point/extended source Y mag (2.0 arcsec aperture diameter) | -0.9999995e9 | ERROR |
yAperMag4 | real | 4 | mag | Extended source Y aperture corrected mag (2.8 arcsec aperture diameter) | -0.9999995e9 | PHOT_MAG |
yAperMag4Err | real | 4 | mag | Error in extended source Y mag (2.8 arcsec aperture diameter) | -0.9999995e9 | ERROR |
yAperMag6 | real | 4 | mag | Extended source Y aperture corrected mag (5.7 arcsec aperture diameter) | -0.9999995e9 | PHOT_MAG |
yAperMag6Err | real | 4 | mag | Error in extended source Y mag (5.7 arcsec aperture diameter) | -0.9999995e9 | ERROR |
yGausig | real | 4 | pixels | RMS of axes of ellipse fit in Y | -0.9999995e9 | MORPH_PARAM |
yEll | real | 4 | 1-b/a, where a/b=semi-major/minor axes in Y | -0.9999995e9 | PHYS_ELLIPTICITY | |
yPA | real | 4 | Degrees | ellipse fit celestial orientation in Y | -0.9999995e9 | POS_POS-ANG |
yErrBits | int | 4 | processing warning/error bitwise flags in Y | -99999999 | CODE_MISC | |
yDeblend | int | 4 | placeholder flag indicating parent/child relation in Y | -99999999 | CODE_MISC | |
yClass | smallint | 2 | discrete image classification flag in Y | -9999 | CLASS_MISC | |
yClassStat | real | 4 | N(0,1) stellarness-of-profile statistic in Y | -0.9999995e9 | STAT_PROP | |
yppErrBits | int | 4 | additional WFAU post-processing error bits in Y | 0 | CODE_MISC | |
ySeqNum | int | 4 | the running number of the Y detection | -99999999 | ID_NUMBER | |
yObjID | bigint | 8 | DEPRECATED (do not use) | -99999999 | ID_NUMBER | |
yXi | real | 4 | arcsec | Offset of Y detection from master position (+east/-west) | -0.9999995e9 | POS_EQ_RA_OFF |
yEta | real | 4 | arcsec | Offset of Y detection from master position (+north/-south) | -0.9999995e9 | POS_EQ_DEC_OFF |
j_1HallMag | real | 4 | mag | Total point source 1st epoch J mag | -0.9999995e9 | PHOT_MAG |
j_1HallMagErr | real | 4 | mag | Error in total point source 1st epoch J mag | -0.9999995e9 | ERROR |
j_1PetroMag | real | 4 | mag | Extended source 1st epoch J mag (Petrosian) | -0.9999995e9 | PHOT_MAG |
j_1PetroMagErr | real | 4 | mag | Error in extended source 1st epoch J mag (Petrosian) | -0.9999995e9 | ERROR |
j_1PsfMag | real | 4 | mag | Point source profile-fitted 1st epoch J mag | -0.9999995e9 | PHOT_MAG |
j_1PsfMagErr | real | 4 | mag | Error in point source profile-fitted 1st epoch J mag | -0.9999995e9 | ERROR |
j_1SerMag2D | real | 4 | mag | Extended source 1st epoch J mag (profile-fitted) | -0.9999995e9 | PHOT_MAG |
j_1SerMag2DErr | real | 4 | mag | Error in extended source 1st epoch J mag (profile-fitted) | -0.9999995e9 | ERROR |
j_1AperMag3 | real | 4 | mag | Default point/extended source 1st epoch J aperture corrected mag (2.0 arcsec aperture diameter) | -0.9999995e9 | PHOT_MAG |
j_1AperMag3Err | real | 4 | mag | Error in default point/extended source 1st epoch J mag (2.0 arcsec aperture diameter) | -0.9999995e9 | ERROR |
j_1AperMag4 | real | 4 | mag | Extended source 1st epoch J aperture corrected mag (2.8 arcsec aperture diameter) | -0.9999995e9 | PHOT_MAG |
j_1AperMag4Err | real | 4 | mag | Error in extended source 1st epoch J mag (2.8 arcsec aperture diameter) | -0.9999995e9 | ERROR |
j_1AperMag6 | real | 4 | mag | Extended source 1st epoch J aperture corrected mag (5.7 arcsec aperture diameter) | -0.9999995e9 | PHOT_MAG |
j_1AperMag6Err | real | 4 | mag | Error in extended source 1st epoch J mag (5.7 arcsec aperture diameter) | -0.9999995e9 | ERROR |
j_1Gausig | real | 4 | pixels | RMS of axes of ellipse fit in 1st epoch J | -0.9999995e9 | MORPH_PARAM |
j_1Ell | real | 4 | 1-b/a, where a/b=semi-major/minor axes in 1st epoch J | -0.9999995e9 | PHYS_ELLIPTICITY | |
j_1PA | real | 4 | Degrees | ellipse fit celestial orientation in 1st epoch J | -0.9999995e9 | POS_POS-ANG |
j_1ErrBits | int | 4 | processing warning/error bitwise flags in 1st epoch J | -99999999 | CODE_MISC | |
j_1Deblend | int | 4 | placeholder flag indicating parent/child relation in 1st epoch J | -99999999 | CODE_MISC | |
j_1Class | smallint | 2 | discrete image classification flag in 1st epoch J | -9999 | CLASS_MISC | |
j_1ClassStat | real | 4 | N(0,1) stellarness-of-profile statistic in 1st epoch J | -0.9999995e9 | STAT_PROP | |
j_1ppErrBits | int | 4 | additional WFAU post-processing error bits in 1st epoch J | 0 | CODE_MISC | |
j_1SeqNum | int | 4 | the running number of the 1st epoch J detection | -99999999 | ID_NUMBER | |
j_1ObjID | bigint | 8 | DEPRECATED (do not use) | -99999999 | ID_NUMBER | |
j_1Xi | real | 4 | arcsec | Offset of 1st epoch J detection from master position (+east/-west) | -0.9999995e9 | POS_EQ_RA_OFF |
j_1Eta | real | 4 | arcsec | Offset of 1st epoch J detection from master position (+north/-south) | -0.9999995e9 | POS_EQ_DEC_OFF |
j_2HallMag | real | 4 | mag | Total point source 2nd epoch J mag | -0.9999995e9 | PHOT_MAG |
j_2HallMagErr | real | 4 | mag | Error in total point source 2nd epoch J mag | -0.9999995e9 | ERROR |
j_2PetroMag | real | 4 | mag | Extended source 2nd epoch J mag (Petrosian) | -0.9999995e9 | PHOT_MAG |
j_2PetroMagErr | real | 4 | mag | Error in extended source 2nd epoch J mag (Petrosian) | -0.9999995e9 | ERROR |
j_2PsfMag | real | 4 | mag | Point source profile-fitted 2nd epoch J mag | -0.9999995e9 | PHOT_MAG |
j_2PsfMagErr | real | 4 | mag | Error in point source profile-fitted 2nd epoch J mag | -0.9999995e9 | ERROR |
j_2SerMag2D | real | 4 | mag | Extended source 2nd epoch J mag (profile-fitted) | -0.9999995e9 | PHOT_MAG |
j_2SerMag2DErr | real | 4 | mag | Error in extended source 2nd epoch J mag (profile-fitted) | -0.9999995e9 | ERROR |
j_2AperMag3 | real | 4 | mag | Default point/extended source 2nd epoch J aperture corrected mag (2.0 arcsec aperture diameter) | -0.9999995e9 | PHOT_MAG |
j_2AperMag3Err | real | 4 | mag | Error in default point/extended source 2nd epoch J mag (2.0 arcsec aperture diameter) | -0.9999995e9 | ERROR |
j_2AperMag4 | real | 4 | mag | Extended source 2nd epoch J aperture corrected mag (2.8 arcsec aperture diameter) | -0.9999995e9 | PHOT_MAG |
j_2AperMag4Err | real | 4 | mag | Error in extended source 2nd epoch J mag (2.8 arcsec aperture diameter) | -0.9999995e9 | ERROR |
j_2AperMag6 | real | 4 | mag | Extended source 2nd epoch J aperture corrected mag (5.7 arcsec aperture diameter) | -0.9999995e9 | PHOT_MAG |
j_2AperMag6Err | real | 4 | mag | Error in extended source 2nd epoch J mag (5.7 arcsec aperture diameter) | -0.9999995e9 | ERROR |
j_2Gausig | real | 4 | pixels | RMS of axes of ellipse fit in 2nd epoch J | -0.9999995e9 | MORPH_PARAM |
j_2Ell | real | 4 | 1-b/a, where a/b=semi-major/minor axes in 2nd epoch J | -0.9999995e9 | PHYS_ELLIPTICITY | |
j_2PA | real | 4 | Degrees | ellipse fit celestial orientation in 2nd epoch J | -0.9999995e9 | POS_POS-ANG |
j_2ErrBits | int | 4 | processing warning/error bitwise flags in 2nd epoch J | -99999999 | CODE_MISC | |
j_2Deblend | int | 4 | placeholder flag indicating parent/child relation in 2nd epoch J | -99999999 | CODE_MISC | |
j_2Class | smallint | 2 | discrete image classification flag in 2nd epoch J | -9999 | CLASS_MISC | |
j_2ClassStat | real | 4 | N(0,1) stellarness-of-profile statistic in 2nd epoch J | -0.9999995e9 | STAT_PROP | |
j_2ppErrBits | int | 4 | additional WFAU post-processing error bits in 2nd epoch J | 0 | CODE_MISC | |
j_2SeqNum | int | 4 | the running number of the 2nd epoch J detection | -99999999 | ID_NUMBER | |
j_2ObjID | bigint | 8 | DEPRECATED (do not use) | -99999999 | ID_NUMBER | |
j_2Xi | real | 4 | arcsec | Offset of 2nd epoch J detection from master position (+east/-west) | -0.9999995e9 | POS_EQ_RA_OFF |
j_2Eta | real | 4 | arcsec | Offset of 2nd epoch J detection from master position (+north/-south) | -0.9999995e9 | POS_EQ_DEC_OFF |
hHallMag | real | 4 | mag | Total point source H mag | -0.9999995e9 | PHOT_MAG |
hHallMagErr | real | 4 | mag | Error in total point source H mag | -0.9999995e9 | ERROR |
hPetroMag | real | 4 | mag | Extended source H mag (Petrosian) | -0.9999995e9 | PHOT_MAG |
hPetroMagErr | real | 4 | mag | Error in extended source H mag (Petrosian) | -0.9999995e9 | ERROR |
hPsfMag | real | 4 | mag | Point source profile-fitted H mag | -0.9999995e9 | PHOT_MAG |
hPsfMagErr | real | 4 | mag | Error in point source profile-fitted H mag | -0.9999995e9 | ERROR |
hSerMag2D | real | 4 | mag | Extended source H mag (profile-fitted) | -0.9999995e9 | PHOT_MAG |
hSerMag2DErr | real | 4 | mag | Error in extended source H mag (profile-fitted) | -0.9999995e9 | ERROR |
hAperMag3 | real | 4 | mag | Default point/extended source H aperture corrected mag (2.0 arcsec aperture diameter) | -0.9999995e9 | PHOT_MAG |
hAperMag3Err | real | 4 | mag | Error in default point/extended source H mag (2.0 arcsec aperture diameter) | -0.9999995e9 | ERROR |
hAperMag4 | real | 4 | mag | Extended source H aperture corrected mag (2.8 arcsec aperture diameter) | -0.9999995e9 | PHOT_MAG |
hAperMag4Err | real | 4 | mag | Error in extended source H mag (2.8 arcsec aperture diameter) | -0.9999995e9 | ERROR |
hAperMag6 | real | 4 | mag | Extended source H aperture corrected mag (5.7 arcsec aperture diameter) | -0.9999995e9 | PHOT_MAG |
hAperMag6Err | real | 4 | mag | Error in extended source H mag (5.7 arcsec aperture diameter) | -0.9999995e9 | ERROR |
hGausig | real | 4 | pixels | RMS of axes of ellipse fit in H | -0.9999995e9 | MORPH_PARAM |
hEll | real | 4 | 1-b/a, where a/b=semi-major/minor axes in H | -0.9999995e9 | PHYS_ELLIPTICITY | |
hPA | real | 4 | Degrees | ellipse fit celestial orientation in H | -0.9999995e9 | POS_POS-ANG |
hErrBits | int | 4 | processing warning/error bitwise flags in H | -99999999 | CODE_MISC | |
hDeblend | int | 4 | placeholder flag indicating parent/child relation in H | -99999999 | CODE_MISC | |
hClass | smallint | 2 | discrete image classification flag in H | -9999 | CLASS_MISC | |
hClassStat | real | 4 | N(0,1) stellarness-of-profile statistic in H | -0.9999995e9 | STAT_PROP | |
hppErrBits | int | 4 | additional WFAU post-processing error bits in H | 0 | CODE_MISC | |
hSeqNum | int | 4 | the running number of the H detection | -99999999 | ID_NUMBER | |
hObjID | bigint | 8 | DEPRECATED (do not use) | -99999999 | ID_NUMBER | |
hXi | real | 4 | arcsec | Offset of H detection from master position (+east/-west) | -0.9999995e9 | POS_EQ_RA_OFF |
hEta | real | 4 | arcsec | Offset of H detection from master position (+north/-south) | -0.9999995e9 | POS_EQ_DEC_OFF |
kHallMag | real | 4 | mag | Total point source K mag | -0.9999995e9 | PHOT_MAG |
kHallMagErr | real | 4 | mag | Error in total point source K mag | -0.9999995e9 | ERROR |
kPetroMag | real | 4 | mag | Extended source K mag (Petrosian) | -0.9999995e9 | PHOT_MAG |
kPetroMagErr | real | 4 | mag | Error in extended source K mag (Petrosian) | -0.9999995e9 | ERROR |
kPsfMag | real | 4 | mag | Point source profile-fitted K mag | -0.9999995e9 | PHOT_MAG |
kPsfMagErr | real | 4 | mag | Error in point source profile-fitted K mag | -0.9999995e9 | ERROR |
kSerMag2D | real | 4 | mag | Extended source K mag (profile-fitted) | -0.9999995e9 | PHOT_MAG |
kSerMag2DErr | real | 4 | mag | Error in extended source K mag (profile-fitted) | -0.9999995e9 | ERROR |
kAperMag3 | real | 4 | mag | Default point/extended source K aperture corrected mag (2.0 arcsec aperture diameter) | -0.9999995e9 | PHOT_MAG |
kAperMag3Err | real | 4 | mag | Error in default point/extended source K mag (2.0 arcsec aperture diameter) | -0.9999995e9 | ERROR |
kAperMag4 | real | 4 | mag | Extended source K aperture corrected mag (2.8 arcsec aperture diameter) | -0.9999995e9 | PHOT_MAG |
kAperMag4Err | real | 4 | mag | Error in extended source K mag (2.8 arcsec aperture diameter) | -0.9999995e9 | ERROR |
kAperMag6 | real | 4 | mag | Extended source K aperture corrected mag (5.7 arcsec aperture diameter) | -0.9999995e9 | PHOT_MAG |
kAperMag6Err | real | 4 | mag | Error in extended source K mag (5.7 arcsec aperture diameter) | -0.9999995e9 | ERROR |
kGausig | real | 4 | pixels | RMS of axes of ellipse fit in K | -0.9999995e9 | MORPH_PARAM |
kEll | real | 4 | 1-b/a, where a/b=semi-major/minor axes in K | -0.9999995e9 | PHYS_ELLIPTICITY | |
kPA | real | 4 | Degrees | ellipse fit celestial orientation in K | -0.9999995e9 | POS_POS-ANG |
kErrBits | int | 4 | processing warning/error bitwise flags in K | -99999999 | CODE_MISC | |
kDeblend | int | 4 | placeholder flag indicating parent/child relation in K | -99999999 | CODE_MISC | |
kClass | smallint | 2 | discrete image classification flag in K | -9999 | CLASS_MISC | |
kClassStat | real | 4 | N(0,1) stellarness-of-profile statistic in K | -0.9999995e9 | STAT_PROP | |
kppErrBits | int | 4 | additional WFAU post-processing error bits in K | 0 | CODE_MISC | |
kSeqNum | int | 4 | the running number of the K detection | -99999999 | ID_NUMBER | |
kObjID | bigint | 8 | DEPRECATED (do not use) | -99999999 | ID_NUMBER | |
kXi | real | 4 | arcsec | Offset of K detection from master position (+east/-west) | -0.9999995e9 | POS_EQ_RA_OFF |
kEta | real | 4 | arcsec | Offset of K detection from master position (+north/-south) | -0.9999995e9 | POS_EQ_DEC_OFF |
Total length | 765 |