Flat /raid/aavsonet/bsm_s/170831/FlatB.fits Flat /raid/aavsonet/bsm_s/170831/FlatGR.fits Flat /raid/aavsonet/bsm_s/170831/FlatGr.fits Flat /raid/aavsonet/bsm_s/170831/FlatGRH.fits Flat /raid/aavsonet/bsm_s/170831/FlatI.fits Flat /raid/aavsonet/bsm_s/170831/FlatR.fits Flat /raid/aavsonet/bsm_s/170831/FlatV.fits