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Reports until 14:21, Friday 20 January 2023
H1 SUS (CDS, ISC, SUS)
jeffrey.kissel@LIGO.ORG - posted 14:21, Friday 20 January 2023 - last comment - 17:28, Friday 20 January 2023(66921)
Monitoring 3.3 Hz ITM P/Y L2 to R0 Damping Channels SDF
E. Capote, S. Dwyer, J. Kissel

The susb123 computer crash this morning (LHO:66906) revealed that ITM P/Y L2 to R0 Damping of a 3.3 Hz ring-up that occurs during high power operation, installed back in Nov 11 2022 (LHO:65728) had not been properly captured in the SDF, because the channels under question were not monitored (even though Sheila's got a screenshot in that aLOG that she was about to accept and monitor the settings... #facepalm).

Elenna, while Sheila and I were watching and saying out loud that "we hear and see that you have hit the CONFIRM button after you've saved the screenshots, has monitored all of the relevant R0 channels for ALL QUADs -- ITMX, ITMY, ETMX, and ETMY. See attached screenshots.

(There are two ITMY SDF screenshots because we accidentally monitored the ITMY settings before remembering to turn the damping back ON.)

The ITM P/Y L2 WIT to R0 damping is now back ON  (see 6th and 7th screenshots).
Images attached to this report
Comments related to this report
elenna.capote@LIGO.ORG - 17:28, Friday 20 January 2023 (66932)

Jeff's last statement should say the ITM R/P L2 WIT to R0 damping is turned back on. There is no yaw damping engaged!

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