i#12 dome flat 11-2009	Combined ALFOSC i(#12)-band twilight flat with cuts set to +-14% of the median level. This is a median of 9 dome flats from 21-11-2009, with the median count level about 36k ADUs. Individual frames have been de-biased.
	R#76 dome flat 11-2009	Combined ALFOSC R(#76)-band twilight flat with cuts set to +-10% of the median level. This is a median of 5 dome flats from 21-11-2009, with the median count level about 44k ADUs. Individual frames have been de-biased.
	V#75 dome flat 12-2009	Combined ALFOSC V(#75)-band twilight flat with cuts set to +-7% of the median level. This is a median of 9 dome flats from 09-12-2009 with the median count level about 19k ADUs. Individual frames have been de-biased.
	B#74 dome flat 12-2009	Combined ALFOSC B(#74)-band twilight flat with cuts set to +-6% of the median level. This is a median of 7 dome flats from 09-12-2009, with the median count level about 19k ADUs. Individual frames have been de-biased.