New task MAPMAKER (February 27, 2009):

Plot set/subset data from a GIPSY set or data slices in a FITS file
and annotate those plots with world coordinate labels. Use
contour lines to enhance the visibility of features.
The task has a hard copy facility for PS, PDF, png etc.
The program is ideal for comparing channels in a radio data cube
or for comparing different sources (e.g. mixing GIPSY sets
and FITS files). Put markers with a mouse button. These markers
are simultaneously plotted in all other images at the same position in
world coordinates.