Flat /raid/aavsonet/bsm_tx/200430/FlatB.fits Flat /raid/aavsonet/bsm_tx/200430/FlatC.fits Flat /raid/aavsonet/bsm_tx/200430/FlatI.fits Flat /raid/aavsonet/bsm_tx/200430/FlatR.fits Flat /raid/aavsonet/bsm_tx/200430/FlatV.fits