iraf.net

NUMBER:	229
MODULE:	images.imcombine, ccdred.combine
SYSTEM:	V2.9
DATE:	Fri Sep 24 10:40:31 MST 1993
FROM:	valdes

BUG:	If an offset file is specified as containing absolute offsets
	but with all the offsets equal then the combining acted like
	relative offsets except the output image size would be that
	of the absolute offsets and garbage appears in the final
	lines/columns.  The workaround is to either not have
	identical offsets or combine the images without offsets
	and then paste the result into a bigger empty image at
	the desired offset with IMCOPY.

STATUS:	Fixed in V2.10.3.