Flat /raid/aavsonet/bsm_s/170731/FlatB.fits Flat /raid/aavsonet/bsm_s/170731/FlatGR.fits Flat /raid/aavsonet/bsm_s/170731/FlatGr.fits Flat /raid/aavsonet/bsm_s/170731/FlatGRH.fits Flat /raid/aavsonet/bsm_s/170731/FlatI.fits Flat /raid/aavsonet/bsm_s/170731/FlatR.fits Flat /raid/aavsonet/bsm_s/170731/FlatV.fits