| Merged, seamless point source catalogue derived from the UKIDSS LAS |
| This view defines a subset of point-like sources from the UKIDSS Large Area Survey (LAS). If your science application requires a seamless selection of sources consistently classified as point-like (e.g. stars or QSOs) in the LAS then use this view. NB: as always, there is a trade-off between completeness and reliability. If completeness is more important than high reliability, then use this view since it is optimised for reasonable completeness and NOT high reliability. If a very clean, highly reliable but incomplete selection is sufficient, then use view reliableLasPointSource. Detection is required in YJH; sources appearing in one or two passbands only will not appear in this view |
SELECT *
FROM lasSource
/* Seamless selection of unique objects: */
WHERE (priOrSec <= 0 OR priOrSec = frameSetID)
/* Good quality, likely point source detections in Y, J1 and H: */
AND yClass BETWEEN -2 AND -1 AND yppErrBits < 256
AND j_1Class BETWEEN -2 AND -1 AND j_1ppErrBits < 256
AND hClass BETWEEN -2 AND -1 AND hppErrBits < 256
/* Good quality, likely point detection, OR no detection, in J2 and K: */
AND (j_2Class BETWEEN -2 AND -1 OR j_2Class = -9999)
AND (j_2ppErrBits < 256)
AND (kClass BETWEEN -2 AND -1 OR kClass = -9999)
AND (kppErrBits < 256)
The details of the table defined by this view are available here.