The Pipeline 3 production flats are summarized below. Each row consititutes
a separate hardware period and contains several diagnostics. Display ranges
are as follows:
c1 970000 970922* c2 970927 980918 c3 980919 981020 c4 981021 990720 c5 990721 000901 c6 000902 001231 * followed by nights w/o flats; will need to decide which canonical these nights go with.