FLATFILE= '/data/gcam/58277/gimg-0003.fits.gz'                                  
FLATFILE= '/data/gcam/58277/gimg-0242.fits.gz'                                  
FLATFILE= '/data/gcam/58277/gimg-0511.fits.gz'                                  
FLATFILE= '/data/gcam/58277/gimg-0686.fits.gz'                                  
FLATFILE= '/data/gcam/58277/gimg-0869.fits.gz'