Flat /raid/aavsonet/oc61/200419/FlatB.fits Flat /raid/aavsonet/oc61/200419/FlatSG.fits Flat /raid/aavsonet/oc61/200419/FlatSI.fits Flat /raid/aavsonet/oc61/200419/FlatSR.fits Flat /raid/aavsonet/oc61/200419/FlatV.fits