A new task, WMOSAIC, to be installed in STSDAS will produce a mosaic of the four groups that comprise the full WF/PC field of view. This task corrects for geometric distortions in each chip as well as rotations, offsets, and scale differences among the chips. WMOSAIC does a more careful delineation of the boundaries of each group by using the Kelsall spots data. This procedure minimizes the unsightly "cross" caused by the pyramid shadows between groups.
Astronomical Data Analysis Software and Systems III
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