Abstract / Description of output
The First Data Release (DR1) of the United Kingdom Infrared Telescope
Infrared Deep Sky Survey (UKIDSS) took place on 2006 July 21. The UKIDSS
is a set of five large near-infrared surveys, covering a complementary
range of areas, depths and Galactic latitudes. The DR1 is the first
large release of survey-quality data from the UKIDSS and includes 320
deg2 of multicolour data to (Vega) K = 18, complete
(depending on the survey) in three to five bands from the set ZYJHK,
together with 4 deg2 of deep JK data to an average depth K =
21. In addition, the release includes a similar quantity of data with
incomplete filter coverage. In JHK, in regions of low extinction, the
photometric uniformity of the calibration is better than 0.02mag in each
band. The accuracy of the calibration in ZY remains to be quantified,
and the same is true of JHK in regions of high extinction. The median
image full width at half-maximum across the data set is 0.82arcsec. We
describe changes since the Early Data Release in the implementation,
pipeline and calibration, quality control, and archive procedures. We
provide maps of the areas surveyed, and summarize the contents of each
of the five surveys in terms of filters, areas and depths. The DR1 marks
completion of 7 per cent of the UKIDSS seven-year goals.
Original language | English |
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Pages (from-to) | 213-226 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 375 |
DOIs | |
Publication status | Published - 1 Feb 2007 |