UV_TRACKS /FRAME

        [CLEAN\]UV_TRACKS ... /FRAME [size] [/HOUR_ANGLE  Hmin  [Hmax]]  [/TABLE
    [Name]]  [/HORIZON  Elmin]  [/INTEGRATION  t]  [/STATIONS ALL|list] [/WEIGHT
    Mode]

    Option /FRAME [size] should be used to start a new UV  coverage.  It  clears
    the  plot,  draws the box, and open a new table if /TABLE is present. 'size'
    is the maximum UV spacing plotted, in meters  (default  800  m).  Subsequent
    call to the command (without /FRAME) adds the new configurations.