UV_STAT Mosaics

        UV_STAT handles  Mosaic  like  Single-Field  for  the  weighting  (BEAM,
    BRIGGS,  TAPER  and  WEIGHT arguments): all visibilities are considered, in-
    stead of those of one among the various fields.  Accordingly, the  predicted
    beam sizes are often underestimated compared to what UV_MAP and FIT commands
    would yield.

    For  a fine adjustment of the beam shape and size, it is recommended to ver-
    ify using UV_MAP and FIT commands and iterate if needed.