Description
Photographic photometry and 1950 coordinates were determined using Automated Image location on 50 micron aperture PDS scans of the regions on UKSTU Schmidt plates. Galaxy contamination, which is small at these relatively bright apparent magnitudes, has not been removed from the images located. The image locating algorithm does not locate faint stars within 9 seconds of arc of an image of a brighter star on the plate. Assuming uniform random distributions, the estimated incompleteness is 0.5% at magnitude 15 and 2.2% at 17.5.
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