Flat /raid/aavsonet/oc61/200103/FlatB.fits
Flat /raid/aavsonet/oc61/200103/FlatSG.fits
Flat /raid/aavsonet/oc61/200103/FlatSI.fits
Flat /raid/aavsonet/oc61/200103/FlatSR.fits
Flat /raid/aavsonet/oc61/200103/FlatV.fits