Flat /raid/aavsonet/bsm_tx/200613/FlatB.fits Flat /raid/aavsonet/bsm_tx/200613/FlatC.fits Flat /raid/aavsonet/bsm_tx/200613/FlatI.fits Flat /raid/aavsonet/bsm_tx/200613/FlatR.fits Flat /raid/aavsonet/bsm_tx/200613/FlatV.fits