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