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Table: ukidss_dr11plus.udssource
(The bold columns are indexed columns)
 | Column Name | Description | Datatype | 
|---|---|---|
| ah | The galactic extinction correction in the H band for extragalactic objects | REAL | 
| aj | The galactic extinction correction in the J band for extragalactic objects | REAL | 
| ak | The galactic extinction correction in the K band for extragalactic objects | REAL | 
| b | Galactic latitude | DOUBLE | 
| cueventid | UID of curation event giving rise to this record | INTEGER | 
| cx | unit vector of spherical co-ordinates | DOUBLE | 
| cy | unit vector of spherical co-ordinates | DOUBLE | 
| cz | unit vector of spherical co-ordinates | DOUBLE | 
| dec | Celestial Declination | DOUBLE | 
| ebv | 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) | REAL | 
| elat | Ecliptic latitude | DOUBLE | 
| elon | Ecliptic longitude | DOUBLE | 
| eta | SDSS system spherical co-ordinate 2 | DOUBLE | 
| framesetid | UID of the set of frames that this merged source comes from | BIGINT | 
| hapermag3 | Default point/extended source H mag, no aperture correction applied | REAL | 
| hapermag3err | Error in default point/extended source H mag (2.0 arcsec aperture diameter) | REAL | 
| hapermag4 | Extended source H mag, no aperture correction applied | REAL | 
| hapermag4err | Error in extended source H mag (2.8 arcsec aperture diameter) | REAL | 
| hapermag6 | Extended source H mag, no aperture correction applied | REAL | 
| hapermag6err | Error in extended source H mag (5.7 arcsec aperture diameter) | REAL | 
| hclass | discrete image classification flag in H | SMALLINT | 
| hclassstat | S-Extractor classification statistic in H | REAL | 
| hdeblend | placeholder flag indicating parent/child relation in H | INTEGER | 
| hell | 1-b/a, where a/b=semi-major/minor axes in H | REAL | 
| herrbits | processing warning/error bitwise flags in H | SMALLINT | 
| heta | Offset of H detection from master position (+north/-south) | REAL | 
| hgausig | RMS of axes of ellipse fit in H | REAL | 
| hhallmag | Not available in SE output | REAL | 
| hhallmagerr | Not available in SE output | REAL | 
| hmkext | Extended source colour H-K (using aperMag3) | REAL | 
| hmkexterr | Error on extended source colour H-K | REAL | 
| hmkpnt | Point source colour H-K (using aperMag3) | REAL | 
| hmkpnterr | Error on point source colour H-K | REAL | 
| hpa | ellipse fit celestial orientation in H | REAL | 
| hpetromag | Extended source H mag (Petrosian) | REAL | 
| hpetromagerr | Error in extended source H mag (Petrosian) | REAL | 
| hpperrbits | additional WFAU post-processing error bits in H | INTEGER | 
| hpsfmag | Not available in SE output | REAL | 
| hpsfmagerr | Not available in SE output | REAL | 
| hseqnum | the running number of the H detection | INTEGER | 
| hsermag2d | Not available in SE output | REAL | 
| hsermag2derr | Not available in SE output | REAL | 
| htm9 | HTM index (order 9 => ~10 arcmin size) | INTEGER | 
| htmid | Hierarchical Triangular Mesh (HTM) index, 20 deep, for equatorial co-ordinates | BIGINT | 
| hxi | Offset of H detection from master position (+east/-west) | REAL | 
| japermag3 | Default point/extended source J mag, no aperture correction applied | REAL | 
| japermag3err | Error in default point/extended source J mag (2.0 arcsec aperture diameter) | REAL | 
| japermag4 | Extended source J mag, no aperture correction applied | REAL | 
| japermag4err | Error in extended source J mag (2.8 arcsec aperture diameter) | REAL | 
| japermag6 | Extended source J mag, no aperture correction applied | REAL | 
| japermag6err | Error in extended source J mag (5.7 arcsec aperture diameter) | REAL | 
| jclass | discrete image classification flag in J | SMALLINT | 
| jclassstat | S-Extractor classification statistic in J | REAL | 
| jdeblend | placeholder flag indicating parent/child relation in J | INTEGER | 
| jell | 1-b/a, where a/b=semi-major/minor axes in J | REAL | 
| jerrbits | processing warning/error bitwise flags in J | SMALLINT | 
| jeta | Offset of J detection from master position (+north/-south) | REAL | 
| jgausig | RMS of axes of ellipse fit in J | REAL | 
| jhallmag | Not available in SE output | REAL | 
| jhallmagerr | Not available in SE output | REAL | 
| jmhext | Extended source colour J-H (using aperMag3) | REAL | 
| jmhexterr | Error on extended source colour J-H | REAL | 
| jmhpnt | Point source colour J-H (using aperMag3) | REAL | 
| jmhpnterr | Error on point source colour J-H | REAL | 
| jpa | ellipse fit celestial orientation in J | REAL | 
| jpetromag | Extended source J mag (Petrosian) | REAL | 
| jpetromagerr | Error in extended source J mag (Petrosian) | REAL | 
| jpperrbits | additional WFAU post-processing error bits in J | INTEGER | 
| jpsfmag | Not available in SE output | REAL | 
| jpsfmagerr | Not available in SE output | REAL | 
| jseqnum | the running number of the J detection | INTEGER | 
| jsermag2d | Not available in SE output | REAL | 
| jsermag2derr | Not available in SE output | REAL | 
| jxi | Offset of J detection from master position (+east/-west) | REAL | 
| kapermag3 | Default point/extended source K mag, no aperture correction applied | REAL | 
| kapermag3err | Error in default point/extended source K mag (2.0 arcsec aperture diameter) | REAL | 
| kapermag4 | Extended source K mag, no aperture correction applied | REAL | 
| kapermag4err | Error in extended source K mag (2.8 arcsec aperture diameter) | REAL | 
| kapermag6 | Extended source K mag, no aperture correction applied | REAL | 
| kapermag6err | Error in extended source K mag (5.7 arcsec aperture diameter) | REAL | 
| kclass | discrete image classification flag in K | SMALLINT | 
| kclassstat | S-Extractor classification statistic in K | REAL | 
| kdeblend | placeholder flag indicating parent/child relation in K | INTEGER | 
| kell | 1-b/a, where a/b=semi-major/minor axes in K | REAL | 
| kerrbits | processing warning/error bitwise flags in K | SMALLINT | 
| keta | Offset of K detection from master position (+north/-south) | REAL | 
| kgausig | RMS of axes of ellipse fit in K | REAL | 
| khallmag | Not available in SE output | REAL | 
| khallmagerr | Not available in SE output | REAL | 
| kpa | ellipse fit celestial orientation in K | REAL | 
| kpetromag | Extended source K mag (Petrosian) | REAL | 
| kpetromagerr | Error in extended source K mag (Petrosian) | REAL | 
| kpperrbits | additional WFAU post-processing error bits in K | INTEGER | 
| kpsfmag | Not available in SE output | REAL | 
| kpsfmagerr | Not available in SE output | REAL | 
| kseqnum | the running number of the K detection | INTEGER | 
| ksermag2d | Not available in SE output | REAL | 
| ksermag2derr | Not available in SE output | REAL | 
| kxi | Offset of K detection from master position (+east/-west) | REAL | 
| l | Galactic longitude | DOUBLE | 
| lambda | SDSS system spherical co-ordinate 1 | DOUBLE | 
| mergedclass | Class flag from available measurements (1|0|-1|-2|-3|-9=galaxy|noise|stellar|probableStar|probableGalaxy|saturated) | SMALLINT | 
| mergedclassstat | Merged S-Extractor classification statistic | REAL | 
| nest4096 | HEALPIX index (Nside 4096, Ring scheme => ~52 arcsec size) | INTEGER | 
| pgalaxy | Probability that the source is a galaxy | REAL | 
| pnoise | Probability that the source is noise | REAL | 
| priorsec | Seam code for a unique (=0) or duplicated (!=0) source (eg. flags overlap duplicates). | SMALLINT | 
| psaturated | Probability that the source is saturated | REAL | 
| pstar | Probability that the source is a star | REAL | 
| ra | Celestial Right Ascension | DOUBLE | 
| random_id | Random ID in the range 0.0 => 100.0 | REAL | 
| ring256 | HEALPIX index (Nside 256, Ring scheme => ~14 arcmin size) | INTEGER | 
| sourceid | UID (unique over entire WSA via programme ID prefix) of this merged detection as assigned by merge algorithm | BIGINT | 


 
      
    


