SET

        [ASTRO\]SET parameter value

    Enter a value for a parameter. Valid parameters are :
      - DUT1
        which is (UT1-UTC) in seconds of time (from I.E.R.S.)
      - DTDT
        which is (TDT-UTC) in seconds of time (from I.E.R.S.)
      - AZIMUTH_REFERENCE
        which is either NORTH or SOUTH, and defines the azimuth to  be  zero
        in the North or South direction (to conform to local conventions).
      - FLUX Name Value
        Attribute the flux value Flux to the source Name (only  for  quasars
        or  continuum  sources  which are not planets). This command is used
        when no planet measurement is available and/or as a  redundant  flux
        check  on  strong and well known quasars or W3OH for example. A * as
        flux value frees the source as reference source.
      - SET NAME Argument
        Define the naming convention for listing sources from  the  catalog.
        Sources  in  the catalog may have several names. This command define
        which name  should  be  printed  in  commands  SOURCE  and  HORIZON.
        Argument can be
                names of the source

    Reasonable system defaults may be introduced in  the  command  procedure
    "GAG_UTIL:ASTRO_LOCAL.ASTRO".