Flat /raid/aavsonet/bsm_tx/200506/FlatB.fits Flat /raid/aavsonet/bsm_tx/200506/FlatC.fits Flat /raid/aavsonet/bsm_tx/200506/FlatI.fits Flat /raid/aavsonet/bsm_tx/200506/FlatR.fits Flat /raid/aavsonet/bsm_tx/200506/FlatV.fits