CATALOG

        [ASTRO\]CATALOG name [/VELETA] [/ALTERNATE]

    Open the catalog file specified by 'name'.  Default  file  extension  is
    ".SOU".  The  catalog  is  of  the format used at Plateau de Bure.  Some
    standard catalogs are available in the directory GAG_ASTRO :
        SIO.SOU contains SiO masers used for pointing.
        CONTINUUM_1.SOU contains "strong" continuum sources (Flux > 8 Jy)
        CONTINUUM_2.SOU contains weaker sources, still useable for  pointing
        (Flux > 3 Jy).
        PHASE-2000.SOU contains the phase calibrators  of  Plateau  de  Bure
        (Flux > 0.1 Jy)
    The catalog format is described in the ASTRO manual  and  summarized  in
    the subtopic FORMAT".

    /VELETA option will  open  the  catalog  file  'name'.CAT,  assuming  it
    follows  the format of OBSINP catalogs in use on the 30 meter telescope.
    A file 'name'.SOU will be  created  in  the  current  directory  in  the
    Plateau  de  Bure format, so that this option needs to be specified ONLY
    ONCE for each catalog. Fancy options such as  SL0P,  SB0P  ...  are  not
    supported.

    /ALTERNATE option will open the specified catalog as a  second  catalog,
    only  accessible  through  the  "/ALTERNATE" options of commands SOURCE,
    HORIZON, and CONVERT. For instance, a catalog containing calibration  or
    pointing  sources   may  be  opened  as  an Alternate catalog, while the
    objects to  study  are  kept  in  the  Current  catalog,  enabling  easy
    switching between the two kinds of objects.

    CATALOG with no arguments will display the catalogs currently opened.