Reports until 10:35, Tuesday 05 August 2025
H1 SUS (SUS)
jeffrey.kissel@LIGO.ORG - posted 10:35, Tuesday 05 August 2025 (86199)
TMSX M1 F1F2F3LF OSEMINF SatAmp Whitening Compensation Updated for S1100122 Channel Response
J. Kissel, O. Patane

Oli and I were reviewing the ECR E2400330 upgraded satamp channel response inventory vs. what's installed on which suspension. We went back to revisit the TMSX M1 F1F2F3LF OSEMs because the upgraded S1100150 satamp (originally installed on 2025-07-15; LHO:85770) was pulled out and replaced with the upgraded S1100122 (on 2025-07-24 LHO:85980) under suspicions that *it* might have been the cause of lock-losses that ended up being a result of the TMSX M1 F2 OSEM *coil's* DAC channel glitching (conclusive evidence LHO:86079, replacement LHO:86086). 

Oli had updated the filters on 2025-07-24, LHO:86072.
However, upon careful review in order to post record of the fits' poles and zeros -- done on 2025-07-28 -- I found a bug in file that Oli used to push new compensation. 
What I've posted to LHO:86032 is the final answer.

Today I've updated the compensation to match this final answer best fit for S1100122's channels:
    - turn OFF the TMSX M1 damping loops
    - run $ python3 satampswap_bestpossible_filterupdate_ECR_E2400330.py -o TMSX from the command line
    - hit LOAD_COEFFICIENTS on the GDS_TP screen.
    - restore damping, watch for any funky ducks

All looks good!