UV_TRACKS ALMA_ACA
Keywords: astro

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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.