The purpose of this ticket is to request clarification regarding several aspects of the telescope and camera capabilities that might impose boundaries on the diversity of data from Special Programs.
First, have the following proposed filter change tolerances been confirmed:
(1) the minimum time between filter changes has no restrictions from thermal tolerances, but it is recommended to keep the filter change rate lower than once every 10 minutes in order to minimize overheads;
(2) the maximum total number of filter changes is 100000 over 15 years (18/night) and the maximum number of filter swaps in and out of the carousel is 3000 in 15 years (once every two nights).
Second, are there any restrictions on the use of the camera rotator or the total amount of slew time? For example, could a Special Program continuously jump between well-separated fields on the sky for an extended amount of time?
The deadline has been set to 1.5 months prior to the expected call for Special Programs white paper proposals. Additional context for this ticket can be found in Section 2.1 of the DMTN study on DM and Special Programs, available at https://dmtn-065.lsst.io