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PLANET

        [ASTRO\]PLANET [name] [/DRAW [Arg1 ... ArgN]] [/QUIET] [/BEAM beam]

    Compute  the  coordinates  of  a Solar System object. Known objects are:
    MOON, SUN, MERCURY, VENUS, MARS, JUPITER, SATURN, URANUS, NEPTUNE. If no
    name  is  entered, all objects are selected. The Option /DRAW is used to
    plot the object symbol on the screen.

    The PLANET command output the planet coordinates (apparent RA,  apparent
    DEC,  Azimuth and Elevation at time of computation) and the sun distance
    (with a warning message if this distance os  lower  than  the  telescope
    limit).  PLANET also indicates the geocentric (DE) and heliocentric (DS)
    distances of the object (in AU), the apparent minor and major  diameters
    (Min and Maj in arcsec), the position angle of the central meridian (PA,
    east from north, in degrees), the brightness temperature (TB in K),  the
    flux  (S  in  Jy)  at the current frequency, the frequency (in GHz), the
    beam (in arcsec), the main beam temperature (Tmb in K),  the  associated
    flux (in Jy) and the planet size convolved with the telescope beam (size
    in arcsec).  The frequency can be entered by updating the variable  FRE-
    QUENCY (in GHz). Without the option /BEAM, the beam used is deduced from
    the current observatory and frequency. User may override this default by
    giving  non  zero  beam size (in arcsec) as an argument of the /BEAM op-
    tion.

    All these parameters are also also written in SIC variables, in the  AS-
    TRO%PLANET%  structure.  Just  enter EXAMINE ASTRO%PLANET% to get a com-
    plete list of these variables. PLANET /QUIET suppresses all  the  print-
    outs on the screen.


Subsections

Gildas manager 2018-05-18