Due to an operational reason (to meet the requirement of Subaru FITS dictionary), the definition of EXP-ID is soon to be changed in the data acquisition side.
In the new definition, EXP-ID is set to 'HSCE%08d' where the letter 'E' is fixed as requested in the dictionary, and the number part corresponds to exactly the same number as our familiar 'visit'.
obs_subaru:ingest.py needs to be updated to include this rule.
The data taken with this change so far are:
The change made as part of HSC-1409 introduces a new code path for the updated data, while old data continue to be supported with the old code path.