I recently had a flip flat installed on my scope at a remote facility. It’s a large 13" panel that uses the Alnitak protocol. While the scope is parked (at a custom position), the flip flat can open without any concern that the flip flat will contact the roof. However while the scope is “upright” (for example at the CWD position), if the flip flat were to open while the roof was closed the flip flat would contact the roof. I’m not concerned about that at the start of a sequence because the roof will be open.
My question is, what is the order of events when something triggers SGP to end the sequence and run end of sequence options? Will the scope park and then the flip flat will close, or does the flip flat close first?
I can see a scenario where the remote facility’s safety monitor closes the roof in the middle of a sequence. At that point SGP will shut things down and I can see a specific set of circumstances that will cause the flip flat to contact the roof if not handled properly.