Old_Names:

    NAME is no longer used, and WEIGHT_MODE is obsolete.
    MAP_RA          [  hours]  RA of map center
    MAP_DEC         [    deg]  Dec of map center
    MAP_ANGLE       [    deg]  Map position angle
    MAP_SHIFT       [Yes/No ]  Shift phase center
    are obsolete, superseded by MAP_CENTER. They are provided only for  compati-
    bility with older scripts.

    MAP_BEAM_STEP    is replaced by BEAM_STEP. An alias is provided for compati-
    bility reasons.

    MAP_TRUNCATE     is replaced by MOSAIC_BEAM. An alias is provided  for  com-
    patibility reasons.

    WCOL (the Weight channel) and MCOL[2] (the channel range) are obsolete also.
    WCOL has no meaning when more than 1 beam must be produced for all channels,
    and should be set to 0.  MCOL is superseded by the /RANGE option facility.

     NAME        [       ]  Label of the dirty image and beam plots
     UV_TAPER    [m,m,deg]  UV-apodization by convolution with a Gaussian
     WEIGHT_MODE [       ]  Weighting mode (NA|UN)
     UV_CELL     [m, ??  ]  UV cell size and threshold for Robust weighting
     MAP_FIELD   [ arcsec]  Map field of view
     MAP_CELL    [ arcsec]  Map cell size
     MAP_SIZE    [ pixels]  Map size in pixels (if MAP_FIELD is zero)
     MCOL        [       ]  First and Last channel to map
     WCOL        [       ]  Channel from which the weights are taken
     CONVOLUTION [       ]  Convolution function (5)
     UV_SHIFT    [       ]  Change the map phase center or map orientation?
     MAP_RA      [       ]  RA of map phase center
     MAP_DEC     [       ]  Dec of map phase center
     MAP_ANGLE   [    deg]  Map position angle
     MAP_BEAM_STEP   [       ]  Number of channels per synthesized beam plane
     MAP_TRUNCATE    [       ]  Truncation level of primary beams in mosaic.