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 970802 c2 970903 970922* c3 970927 971026 c4 971027 981020 c5 981021 990720 c6 990721 001231 * followed by nights w/o flats; will need to decide which canonical these nights go with.