After the various PSL maintenance activities today, I've recalibrated the PSL rotation stage.

While running the MoveRotationStage script, the PMC kept unlocking partway through, so I would have to relock it and start over. After a few times of this happening, Jason and I looked closer and we discovered that when the LASER_PWR guardian sees the IMC input power drop to 0W (as it does when iterating the rotation stage like this), it will unlock the PMC, FSS, and ISS. With this in mind, I paused the LASER_PWR guardian and was able to run through the script with no issue.

For future reference, the process I used for running the calibration is as follows:

• Took IMC offline and paused LASER_PWR guardian
• Ran the script /opt/rtcds/userapps/release/psl/h1/scripts/RotationStage/MoveRotationStage.py to create PSL_rotStageCalib_20Dec2022.txt (attached)
• Changed PSLvals in CalibRotStage.m for correct file name then ran to create calibration curve (attached) and get new fit values (in table)
• Input new fit values into calibration and accepted new values in SDF
• Resumed LASER_PWR guardian to go back to 2W input power