iraf.net

NUMBER:	300
MODULE:	dispcor
SYSTEM:	V2.10.4
DATE:	Thu Jul 13 11:08:04 MST 1995
FROM:	valdes

BUG:	A new capability was added in V2.10.4 to allow DISPCOR to work
	with IDENTIFY database files containing only a shift and no
	dispersion function.  This would occur when using IDENTIFY to
	compute a shift to previously dispersion corrected spectra.  This
	does not work correctly when there is more than one aperture in an
	image.  The workaround is to separate multiaperture images into
	single aperture images with SCOPY and then do the
	IDENTIFY/REIDENTIFY and DISPCOR.

STATUS:	Fixed in later versions.