Flat /raid/aavsonet/bsm_s/170523/FlatB.fits Flat /raid/aavsonet/bsm_s/170523/FlatGR.fits Flat /raid/aavsonet/bsm_s/170523/FlatGr.fits Flat /raid/aavsonet/bsm_s/170523/FlatGRH.fits Flat /raid/aavsonet/bsm_s/170523/FlatI.fits Flat /raid/aavsonet/bsm_s/170523/FlatR.fits Flat /raid/aavsonet/bsm_s/170523/FlatV.fits