"Cutting ccd frames into quadrants:
Lower left of frame is 0,0, upper right is 2048,2048.
example of each quadrant being cut from the original frame:
in iraf, for quadrant 1: imcopy file.fits[1025:2048,1025:2048] fileq1.fits
for quadrant 2: imcopy file.fits[1:1024,1025:2048] fileq2.fits
for quadrant 3: imcopy file.fits[1:1024,1:1024] fileq3.fits
for quadrant 4: imcopy file.fits[1025:2048,1:1024] fileq4.fits
the cutting into quadrants is easily scripted in a bash shell."
Can someone help me devise this script?
I can't just do something like
cl> imcopy 061102_*.fits[1025:2048,1025:2048] 061102_*q1.fits
ERROR: Number of input and output images not the same
because the wildcard doesn't work.
"IRAF (an acronym for Image Reduction and Analysis Facility) is a huge collection of software written by astronomers and by programmers at the National Optical Astronomy Observatory (NOAO) geared towards the reduction of astronomical images in pixel array form, that is, data taken from imaging array detectors such as CCDs"
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