Flat /raid/aavsonet/bsm_tx/200505/FlatB.fits Flat /raid/aavsonet/bsm_tx/200505/FlatC.fits Flat /raid/aavsonet/bsm_tx/200505/FlatI.fits Flat /raid/aavsonet/bsm_tx/200505/FlatR.fits Flat /raid/aavsonet/bsm_tx/200505/FlatV.fits