READ
Keywords: mrtcal-user-manual

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##
READ

            [MRTCAL\]READ  [FileName|FileNum|FIRST|LAST|NEXT|PREV]   [/FILENAME]
        [/SUBSCAN Isub]
            [MRTCAL\]READ ZERO

        Load a file in the Mrtcal buffers:
          -  the  4  first  HDU  in the IMBFITS file (namely Primary, IMBF-scan,
            IMBF-frontend and IMBF-backend), and then read
          - the 3 HDU IMBFITS-backendXXX, IMBFITS-antenna and IMBFITS-subreflec-
            tor  (this  latter not implemented) for the subscan number Isub (de-
            fault 1)
          - the on-track part of the DATA column of the HDU IMBFITS-backendXXX
              is read (take care that it may be large).

        Without argument, the command will try to read again the  current  file-
        name.  Else the command argument can be either
          - the file name when the /FILENAME option is present,
          - the file number (and optionally its version) in the Input index, of
              the form Num (or Num.Ver),
          - the FIRST|LAST file in Current indeX,
          - the NEXT|PREVIOUS file in Current indeX, considered from previous
              call to the command.

        The  reference  file (for NEXT or PREVIOUS) in Current indeX is reset by
        the command MFIND. READ ZERO also reset the reference file and does  not
        read any file.