Camilla, Ryan S, Louis, TJ, Elenna
After GV20 was opened, we were able to successfully lock the X arm on green and send both slow control and green WFS control to ETMX!
We have rerun the baffle scripts for TMSX, ITMX, TMSY and ITMY. We have locked both arms on green, ran the green wfs, and ran through ETM_TMS_WFS_OFFLOADED. Then, we used these positions of the ITMs to set the green camera offsets. This means we can now full run the green arms initial alignment state, and no longer need to run baffle pd scripts to position the ITMs.
Camilla, TJ, Ryan and Louis worked to run the baffle scripts. They had some difficulties with ITMY because it seems to have started in a weird place, but Camilla moved ITMY around by hand enough that she was able to get the script to run properly.
From there, locking the green arms was straightforward, and there were no issues. I've attached the SDF screenshots of the new green camera offsets.
Reminder of how to do this:
- ensure ITM alignment positions are set how you want them (either through baffle pd scripts, or full IFO alignment convergence)
- go to END X/Y OVERVIEW and click CAM ITM PIT/YAW button to open the green camera offset screen (I included an example screenshot of the ITMX screen for reference)
- take a 30 second average of H1:ALS-{X,Y}_CAM_ITM_{PIT,YAW}_POS channels, this is the channel next to "position", this can be done as 'z avg 30 [channel name]'
- put that result in the "nominal" entry below "position"
- SDF
- Once this is set, full initial alignment should be run!
I set the flags in lscparams, gate_valve_flag = False, and no_ETMX_actuation to False.
ALS COMM and DIFF locked without any issue (except some guardian typos we introduced with our new flag), and I stepped manually through some initial alignment steps manually adjusting alignments and usuaing the guardian to lock cavities.
The AS 45 error signal for MICH dark didn't look right, this was because ETMY test offsets were off, even though the guardian state said it was misaligned. There was a message on the suspension overview screen saying test offsets are off. I'm not sure why this happened, or if we can make the way the guardian handles this less confusing. X arm IR, PRX, SRY had no issues.
Locked ALS again, COMM had to do the full search to find IR, I updated the last value in the list with the found location.
In PRMI POP18 flashes up to 150 counts, (I_ERR_DQ channel). I accidentally kicked the BS when I added a yaw element to the new BS damping matrix we added this morning (91834).
PRMI did not lock quickly, we may need to undo some of the changes in 91530 and 91501 now that we have the arms back.