Flat /raid/aavsonet/oc61/200518/FlatB.fits Flat /raid/aavsonet/oc61/200518/FlatSG.fits Flat /raid/aavsonet/oc61/200518/FlatSI.fits Flat /raid/aavsonet/oc61/200518/FlatSR.fits Flat /raid/aavsonet/oc61/200518/FlatV.fits