Current stage and progress

Semesters S18A&B represented the start of Stage III HSC QM operation (see below), which is no longer performed in a shared-risk mode. The time dedicated for QM is now significantly increased, possibly up to 80% of the total HSC time, but still depends on the number of accepted queue programs and available resources. From S18A, HSC QM is offered to intensive programs as well as normal programs. Bad weather filler programs are allowed for open use. Some observations can be carried out during the dead time (so-called sukima) of the classical mode, and during the first and last nights of a Strategic Program run. Strategic programs as well as University of Hawaii and Gemini Telescope time-exchange partner proposals can be executed as HSC QM observations.

Starting from S18A it is possible to propose programs that are time critical. From S19B these are offered to Normal, Intensive and Filler Program. The PI should provide sufficient information about when the observations are supposed to be carried out, i.e. define certain time windows, as part of the Phase 1 submission. Please note, however, that the exact allocation of queue nights is not defined until Phase 2. To increase the possibility of execution of the program, the PI should specify the time windows as relaxed as possible. We'd like to remind that, usually, each HSC observing run lasts for ten days or longer during the dark and gray nights.

So-called cadence programs (observations taken regularly every certain amount of time) are allowed in a restrictive sense starting from S18B, in the form of shared-risk mode monitoring proposals. Details are provided in Section 2.1.2.