lsst.ts.mtdometrajectory¶

Overview¶

MTDomeTrajectory moves the Simonyi Survey Telescope dome to follow the telescope. It does this by reading telescope position from the MTMount CSC and issuing commands to the MTDome CSC.

Unlike most observatory enclosures, we plan to slowly rotate the dome during exposures, in order to minimize the time required to move to the next target. MTDomeTrajectory supports multiple algorithms for determining how to move the dome, though at present only one simple algorithm is available.

User Guide¶

Start the MTDomeTrajectory CSC as follows:

run_mtdometrajectory

Stop the CSC by sending it to the OFFLINE state.

To make the dome follow the telescope: issue the MTDomeTrajectory setEnabledMode command with enabled=True.

To move the dome to a specified position that is different from the telescope:

Stop the dome from following: issue the MTDomeTrajectory setEnabledMode command with enabled=False.
Move the dome: issue the MTDome moveAz command and/or moveEl command.

MTDomeTrajectory can support multiple algorithms for making the dome follow the telescope; but at the time of this writing, there is only one. The algorithm is specified and configured in configuration.

Simulation¶

MTDomeTrajectory can be fully exercised without hardware by running the MTMount CSC and MTDome CSC in simulation mode. MTDomeTrajectory does not have a simulation mode of its own.