Flat /raid/aavsonet/oc61/191221/FlatB.fits Flat /raid/aavsonet/oc61/191221/FlatSG.fits Flat /raid/aavsonet/oc61/191221/FlatSI.fits Flat /raid/aavsonet/oc61/191221/FlatSR.fits Flat /raid/aavsonet/oc61/191221/FlatV.fits