iraf.net

NUMBER:	453
MODULE:	scopy
SYSTEM:	V2.11-V2.11.3
DATE:	Tue Dec 14 11:48:12 MST 1999
FROM:	valdes

BUG:	When copying out a region of a spectrum which is log-linear sampled
	(DC-FLAG=1) the coordinate system of the copied region is wrong.
	This applies whether or not the 'rebin' parameter is set.  The
	workaround is to use DISPCOR; set 'w1' and 'w2' to the desired
	limits and set 'log=yes'.  This will do the same thing as
	SCOPY with 'rebin=yes'.  To extract a region without rebinning
	the simplest thing is to use an image section.  The pixel limits
	corresponding to the desired wavelength range will have to be
	determined in some way such as with SPLOT, LISTPIX, or calculated
	from the CRVAL/CDELT keywords (these are in log units for log-linear
	sampled spectra.

STATUS:	Fixed for the next release.