Flat /raid/aavsonet/oc61/200420/FlatB.fits
Flat /raid/aavsonet/oc61/200420/FlatSG.fits
Flat /raid/aavsonet/oc61/200420/FlatSI.fits
Flat /raid/aavsonet/oc61/200420/FlatSR.fits
Flat /raid/aavsonet/oc61/200420/FlatV.fits