VARIABLE
Keywords: mrtcal-user-manual

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VARIABLE

            [MRTCAL\]VARIABLE [*|What [READ|WRITE]]

        Create one or all the Sic structures mapping the  Mrtcal  internal  buf-
        fers, namely:
          - IMBF%PRIM, IMBF%SCAN, IMBF%FRONT, IMBF%BACK, IMBF%DEROT map the FITS
            HDUs for the scan,
          - SUBS%BACKDATA, SUBS%ANTSLOW, SUBS%ANTFAST map the FITS HDUs for  one
            subscan,
          - IMBDATA%TIME and IMBDATA%IMBF% describe a portion of data of the DA-
            TA table,
          - MHEAD%KEY, MHEAD%PRI, MHEAD%CAL map the sections of the index  entry
            which was read.
        Default is *, i.e. the 4 structures will be created, but only one struc-
        ture can be created with one of the keywords IMBF, SUBS, IMBDATA, MHEAD.

        The structures can be created read-only  (keyword  READ)  or  read-write
        (keyword WRITE) for further update with the commands MUPDATE/MWRITE. De-
        fault is read-only.

        Note that these variables are not updated when the buffers are  changed.
        For safety they should be updated by recalling the command.