UV_SORT /FILE
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UV_SORT /FILE

            [CALIBRATE\]UV_SORT Key /FILE FileIn FileOut

        Creates  in  Fileout  a sorted copy of the UV data found in FileIn.  Key
        can be The Key can be TIME for Time-Baseline ordering,  BASE  for  Base-
        line-Time ordering, or FIELDS for Mosaics. TIME ordering is required for
        efficient operation of the time averaging command UV_TIME.

        The command compares the file size to the  available  RAM  memory  (more
        specifically the size indicated by the logical name SPACE_GILDAS) to de-
        cide whether the operation can be done in Memory only or needs  interme-
        diate files to perform the sorting.