PLOT /ATMOSPHERE

    [PDBI\ or PICO\ or ALMA\]PLOT [...]   [/ATMOSPHERE [Water]]

        Display the atmospheric transmission (at zenith) and  expected  Tsys
    (at  current elevation) according to the specified conditions. Water can
    be specified to overidde the current value.

    The transmission and Tsys are computed on-the-fly using  the  ATMOSPHERE
    command  (see  corresponding help). The command ATMOSPHERE /PRINT can be
    used to list the input parameters that were used. The ATM model  version
    can  be  changed  using  the SET ATM OLD|NEW command (the NEW version is
    recommended).