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UV_TRACKS ALMA_ACA

        ---- Using UV_TRACKS for ALMA ----

    UV_TRACKS  can  be  used to simulate ALMA observations, using the /TABLE
    and /FRAME options to create tables with one or several  configurations.
    To do so, the command sequence must be

    OBSERVATORY alma
    SIC LOG astro_stations "alma-current.cfg"
    UV_TRACKS all [...options...]

    The  logical  astro_stations must point to a configuration file of ALMA.
    They distributed with GILDAS and the  currently  offered  configurations
    are  named "alma-current-"'J'".cfg" and "aca-current.cfg" where J is the
    configuration number.  All the versions of previous  ALMA  configuration
    files  are  distributed  under the names "alma-cycle"'I'"-"'J'".cfg" and
    "aca-cycle"'I'".cfg", where I is the cycle number.  Note that  when  the
    configuration  of several cycles are identical we keep only the files of
    the first cycle in which they were offered.  Then "uv_tracks all"  means
    all stations will be used.

    For  ACA,  it is better to enter "observatory aca" - coordinates are the
    same, but this will make sure the proper antenna diameter is used in the
    computation of shadowing.


Gildas manager 2023-06-01