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SOURCE

        [ASTRO\]SOURCE  [name  [...]]  [/DRAW  [Arg1 ... ArgN]] [/ALTERNATE]
    [/SUN] [/FLUX Fmin Fmax] [/RESET] [/DOPPLER]
    [ASTRO\]SOURCE /VARIABLE VarName [/ALTERNATE] [/FLUX Fmin Fmax]

    Compute the coordinates of a source from the current catalog (or the al-
    ternate catalog, if the option /ALTERNATE is used). If no name is speci-
    fied, all sources of the catalog are selected.  Source  coordinates  may
    also  be  directly  specified in the command line, in the same format as
    the catalog file. The /DRAW option is used to draw the  source  name  on
    the plot at its current position (Azimuth, Elevation).

    The  source  coordinates  (azimuth and elevation at time of computation)
    are printed on the screen, as well as the  line-of-sight  components  of
    the following velocities:
      - V(S/OBS)
        Source (S) relative to Observatory
      - V(S/LSR)
        Source  (S)  relative to Local Standard of Rest. This is the LSR ve-
        locity furnished by the observer as part of the source coordinates.
      - V(LSR/G)
        Local Standard of Rest relative to Solar System Barycenter (G)
      - V(G/OBS)
        Solar System Barycenter (G) relative to the Observatory
    All velocities are in km/s, positive if the distance is increasing. With
    the  above  convention,  V(S/OBS)  = V(S/LSR)+V(LSR/G)+V(G/OBS). Coordi-
    nates, velocities, and redshift are written in SIC variables, in the AS-
    TRO%SOURCE%  structure  (just type EXAMINE ASTRO%SOURCE% to get the com-
    plete list).

    The output of the SOURCE command can be modified with the following  op-
    tions:  SOURCE  /SUN  will  also  list  the sun avoidance limits; SOURCE
    /PRINT suppresses the printing of Azimuth, Elevation, and the velocities
    and prints the source properties as in catalog; SOURCE /QUIET suppresses
    all printout (useful to avoid too many messages on the screen in e.g.  a
    loop on many sources).

    SOURCE  /FLUX  Fmin Fmax will select only sources with flux densities in
    the specified range. Marker sizes will be proportional to the (logarithm
    of  the) flux. This is useful to, e.g., filter a list of potential cali-
    brators.

    SOURCE /RESET will nullify all internal source parameters and remove the
    ASTRO%SOURCE%VARIABLE.


Subsections

Gildas manager 2018-08-20