Flat /raid/aavsonet/bsm_tx/200504/FlatB.fits Flat /raid/aavsonet/bsm_tx/200504/FlatC.fits Flat /raid/aavsonet/bsm_tx/200504/FlatI.fits Flat /raid/aavsonet/bsm_tx/200504/FlatR.fits Flat /raid/aavsonet/bsm_tx/200504/FlatV.fits