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New information (late 2022): Updating the L1 calibration database

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Sometimes the instrument specialists give us new calibrations. Usually just a dead strip list for TKR, 3 (asym, MeV/DAC, peds) at a time for CAL. They need to be put in a standard place, registered in the calibration DB, and set active. This requires picking a time when validity switches from the previous set to the new one. We want this to happen between runs. The gaps between non-SAA runs are short, and CALDB doesn't do leap seconds, so I put the transitions near the middle of an SAA passage - the first one after the last run that we have data for.

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