Additional targets

Important policy of the HSC operation, including the queue mode, is the “no additional targets” rule, which means that all the possible targets must be defined in the Phase 1 stage, and (with exception of very special cases) no new targets will be allowed to include in the program during the OB preparation stage and observations.

Some science programs may benefit from proposing more targets than may be possible to observe in the requested time, and defining the final sample after the acceptance and time allocation. During Phase 2 it is also possible to submit list of targets, which total on-source time exceeds the allocation. Targets within one program can also be prioritized.

Some other restrictions apply to the selection of targets for HSC QM. See the “Clearly Prohibited Cases” in: