| Reliable, but incomplete, source catalogue derived from UKIDSS UDS |
| This view defines a reliable subset of all sources from the UKIDSS Ultra Deep Survey (UDS). If your application requires a selection of reliable sources in the UDS 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 make your sample selection from udsSource directly with appropriate predicates. If a very clean, highly reliable selection is required, then use this view. Selection is based on detecions in JHK (e.g. single passband detections will NOT appear in this view). |
SELECT *
FROM udsSource
/* Good quality detection in J, H and K (note the use of both WSA and S-Extractor error bit flags): */
WHERE jppErrBits BETWEEN 0 AND 255
AND jErrBits BETWEEN 0 AND 7
AND hppErrBits BETWEEN 0 AND 255
AND hErrBits BETWEEN 0 AND 7
AND kppErrBits BETWEEN 0 AND 255
AND kErrBits BETWEEN 0 AND 7
/* J, H and K positional coincidence within 0.5 arcsec: */
AND jXi BETWEEN -0.5 AND +0.5 AND jEta BETWEEN -0.5 AND +0.5
AND hXi BETWEEN -0.5 AND +0.5 AND hEta BETWEEN -0.5 AND +0.5
AND kXi BETWEEN -0.5 AND +0.5 AND kEta BETWEEN -0.5 AND +0.5
The details of the table defined by this view are available here.