Flat /raid/aavsonet/bsm_tx/200930/FlatB.fits Flat /raid/aavsonet/bsm_tx/200930/FlatC.fits Flat /raid/aavsonet/bsm_tx/200930/FlatI.fits Flat /raid/aavsonet/bsm_tx/200930/FlatR.fits Flat /raid/aavsonet/bsm_tx/200930/FlatV.fits