1 GAUSS_SMOOTH
        GAUSS_SMOOTH

    This task performs a 2-D smoothing  by  an  elliptical  gaussian.    The
    algorithm  works  in  the  Fourier  plane and the first 2 dimensions (in
    pixels) should therefore be powers of two (but need not be  equal).   It
    is  much  faster than the equivalent sky plane algorithm, but you should
    beware of aliasing effects when the  size  of  the  convolving  gaussian
    becomes a sizeable fraction of the map (say 30%).
2 Y_NAME$
        TASK\FILE "Input file" Y_NAME$

    The name of the input map (which can be a cube).
2 X_NAME$
        TASK\FILE "Output smoothed image" X_NAME$

    The name of the output smoothed map.
2 MAJOR$
        TASK\REAL "Major axis of convolving gaussian" MAJOR$

    The major axis of  the  smoothing  gaussian  in  user  coordinates  (not
    pixels).
2 MINOR$
        TASK\REAL "Minor axis of convolving gaussian" MINOR$

    The minor axis of  the  smoothing  gaussian  in  user  coordinates  (not
    pixels).
2 PA$
        TASK\REAL "Position angle" PA$

    The position angle of  the  major  of  the  smoothing  gaussian  in  (in
    degrees, from North towards East)
1 END