MX

        [CLEAN\]MX [FirstPlane [LastPlane]]  [/PLOT  Clean|Residu]  [/FLUX  Fmin
    Fmax] [/QUERY]

    Make  and  deconvolve  maps starting from a UV table. It combines UV_MAP and
    CLEAN in a single step.

    The mapping process is identical to UV_MAP.  It makes a map from UV data  by
    griding  the  UV  data  using  a  convolving function, and then Fast Fourier
    Transforming the individual channels.  However, MX always produces a  single
    beam  for  all  channels, thus neglecting frequency change between channels.
    MX enables to shift the map center and rotate the  image,  by  shifting  the
    phase tracking center and rotating the UV coordinates of the input UV table.

    The  CLEAN  algorithm  is similar to the CLARK method, but with major cycles
    operating directly on the ungridded UV table rather than in the image plane.
    Accordingly, aliasing affects only of the residuals, not  the  clean  compo-
    nents.  It  is  thus more accurate but also slower than CLARK as it asks for
    the gridding step at each major cycle.  MX also shares the  same  limitation
    as CLARK on large sidelobes.

    The  user can control the algorithm through SIC variables. New values can be
    given using "LET VARIABLE value". For ease of use, and whenever it is possi-
    ble, a sensible value of each parameter will automatically be computed  from
    the context if the value of the corresponding variable is set to its default
    value,  i.e. zero value and empty string. A few variables are initialized to
    "reasonable" values.

        [CLEAN\]CLEAN ?
    Will list all main CLEAN_* variables controlling the  CLEAN  parameters  for
    the current METHOD.

    HELP CLEAN Variables will give a more complete list.

                [CLEAN\MX ?
        Will  list  all  MAP_* and CLEAN_ * variables controlling the MX parame-
    ters.