Flat /raid/aavsonet/bsm_tx/200925/FlatB.fits Flat /raid/aavsonet/bsm_tx/200925/FlatC.fits Flat /raid/aavsonet/bsm_tx/200925/FlatI.fits Flat /raid/aavsonet/bsm_tx/200925/FlatR.fits Flat /raid/aavsonet/bsm_tx/200925/FlatV.fits