Flat /raid/aavsonet/bsm_tx/200822/FlatB.fits Flat /raid/aavsonet/bsm_tx/200822/FlatC.fits Flat /raid/aavsonet/bsm_tx/200822/FlatI.fits Flat /raid/aavsonet/bsm_tx/200822/FlatR.fits Flat /raid/aavsonet/bsm_tx/200822/FlatV.fits