imcombine8

imcombine8 is an IRAF routine which performs the IRAF task imcombine on all 8 chips of an exposure.

USAGE
 imcombine8 inputfile,inputfile... outputfile
INPUT
 inputfile,...  is a list of input files to be imcombined
outputfile    is the name of the output file
OUTPUT
 none
PARAMETERS
none; Set the parameters for the IRAF routine imcombine using epar

Details:

At the moment (until the general purpose extraction program extract is completed), imcombine8 is the only way to combine multiple spectroscopic exposure with cosmic-ray rejection (sumspec will combine processed spectra, but does not do CR rejection). It seems to work satisfactorily, as long as the shifts between frames are insignificant. Imcombine should be run after biasflat, but before subsky.

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