UV_MAP Mosaics

        [CLEAN\]UV_MAP [[CenterX CenterY Unit] [ANGLE AngleValue]
      /FIELDS FieldList [/TRUNCATE Fraction]

    The UV data can be a Mosaic UV table. In this case, UV_MAP  will  image  the
    Mosaic, using appropriate primary beam size and truncation level.

    By  default,  the  primary beam size is taken from the telescope parameters,
    either as found in the telescope section of the UV table and  the  observing
    frequency  (e.g.  for  ALMA it uses 1.13 Lambda/D). If absent, the telescope
    section information can be added by command SPECIFY TELESCOPE.

    The truncation level (in fraction of peak) for individual pointings is taken
    from variable MOSAIC_BEAM or from the /TRUNCATE option argument.  It  should
    be  0  for  high  dynamic range. Non zero values may be used with caution in
    case of large pointing errors, but require sufficient overlap of the fields.

    The imaging method can be GUETH (default) or SAULT, see the MOSAIC command.