SECTION./ACAT
SUBTRACT/ACAT [cat_name] frame_list
	remove entries from an ASCII\ file catalog
SECTION./FCAT
SUBTRACT/FCAT [cat_name] frame_list
	remove entries from a fit file catalog
SECTION./ICAT
SUBTRACT/ICAT [cat_name] frame_list                
	remove entries from an image catalog
SECTION./TCAT
SUBTRACT/TCAT [cat_name] frame_list
	remove entries from an table catalog
SECTION./TEMP
SUBTRACT/TEMPLATE in out template coords scale
	subtract a properly shifted and resampled template pattern
	from an image
