iraf-mscred - 5.05+2018.07.09-1+b3 main

The MSCRED external package is used to reduce CCD mosaic data in
multiextension FITS format. This format is produced for example by
the Data Capture Agent when observing with the NOAO CCD Mosaic
Imager, as well as similar instruments from AAO, CFA, CFHT, ESO, INT
and others.
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The tasks in the mscred package perform the following functions:
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* display the mosaic data as an apparent single mosaic image,
* provide interactive examination of displayed mosaic data,
* combine multiple calibration exposures into master calibration files,
* perform the basic CCD calibrations such as zero level and gain,
* reconstruct a single mosaic image with distortions removed,
* register and combine dithered operations, and
* save and restore data on tape.