Flat /raid/aavsonet/bsm_s/170721/FlatB.fits Flat /raid/aavsonet/bsm_s/170721/FlatGR.fits Flat /raid/aavsonet/bsm_s/170721/FlatGr.fits Flat /raid/aavsonet/bsm_s/170721/FlatGRH.fits Flat /raid/aavsonet/bsm_s/170721/FlatI.fits Flat /raid/aavsonet/bsm_s/170721/FlatR.fits Flat /raid/aavsonet/bsm_s/170721/FlatV.fits