Flat /raid/aavsonet/bsm_nh2/200926/flatB_bin2.fits Flat /raid/aavsonet/bsm_nh2/200926/flatI_bin2.fits Flat /raid/aavsonet/bsm_nh2/200926/flatSR_bin2.fits Flat /raid/aavsonet/bsm_nh2/200926/flatV_bin2.fits