IRAS

        IRAS Band [Ramin  Ramax  Decmin  Decmax]  [/FLUX  Threshold]  [/SIZE
    Flux_value]

    Plots a marker at the position of all IRAS  point  sources  detected  at
    band  Band (specified by its wavelength in microns 12, 25, 60 or 100) in
    the area  defined  by  Ramin,  Ramax  (in  hours),  Decmin,  Decmax  (in
    degrees). If the option /FLUX is given, only sources with a flux greater
    than Threshold will be select. If the option /SIZE is given, the  marker
    size  will  be proportional to the logarithm of the flux (sources with a
    flux equal to Flux_value having the current marker size as specified  by
    SET MARKER command). The current marker type is used.

    Command IRAS completely ignores the current GreG box to select the  IRAS
    point sources, but the markers will be clipped in this box when plotted.
    Hence, it is up to the user to ensure that the system is EQUATORIAL  and
    that  the  projection  area (specified by command LIMITS and PROJECTION)
    reasonably matches the selection area specified in command IRAS.