UV_TRACKS SMA

        ---- Using UV_TRACKS with SMA configuration files ----

    UV_TRACKS can be used to simulate SMA observations using SMA  configura-
    tion files. The sequence should be:

    SIC LOG astro_stations sma-CONFIG.cfg
    UV_TRACKS all [...options...]

    The  logical  astro_stations  must point to a configuration file of SMA.
    Four configuration files are distributed with GILDAS:

    sma-sub.cfg: for sub compact configuration (note that in this configuration
                 the SMA cannot observe sources at elevations lower than 31.3deg
    sma-com.cfg: for compact configuration
    sma-ext.cfg: for extended configuration
    sma-vex.cfg: for extended configuration

    Then "uv_track all" means all stations in the chosen file will be used.

    A catalog of all the SMA pads is also distributed with gildas. The  pads
    are  identified through their numbers (1 to 26, where 25 and 26 are JCMT
    and CSO positions). Any SMA configuration can be simulated with a  typi-
    cal sequence of command:

    OBSERVATORY SMA
    SIC LOG astro_stations sma-stations.cfg
    UV_TRACKS 1 4 7 9 /FRAME [...]