Flat /raid/aavsonet/bsm_s/170504/FlatB.fits Flat /raid/aavsonet/bsm_s/170504/FlatGR.fits Flat /raid/aavsonet/bsm_s/170504/FlatGr.fits Flat /raid/aavsonet/bsm_s/170504/FlatGRH.fits Flat /raid/aavsonet/bsm_s/170504/FlatI.fits Flat /raid/aavsonet/bsm_s/170504/FlatR.fits Flat /raid/aavsonet/bsm_s/170504/FlatV.fits