This is an incomplete log of different det_ids, with notes on what they are and why(if) they were changed.

det_id	type	state	date range	comments
104	DARK_DARKTIME_BAD	stop	2009-01-01 ->	uses DARKTIME, which fails for some cells. Changed from DARK -> DARK_DARKTIME_BAD so it's not automatically selected (2011-02-18, heather)
223	DARK	stop	2009-01-01 -> 2009-12-09	changed from DARK_PREMASK -> DARK and added end date that is based on camera changes. This is the preferred DARK for this date range, and does not have the problem with DARKTIME being invalid for some cells some of the time. (2011-02-18, heather)