Reports until 14:01, Saturday 02 August 2025
H1 SUS
oli.patane@LIGO.ORG - posted 14:01, Saturday 02 August 2025 (86149)
Satamp swap OSEM noise part 4 (MC1, MC3, ETMY M0/R0, TMSY)

On July 22nd, Fil swapped the satamps for MC1, MC3, ETMY M0/R0, and TMSY (85922). Here are the differences in the noise performance for each before and after the swap.

Finding times where ISC control wasn't on and the chambers were in nominal states (not earthquake or maintenance) was hard to do because of all the earthquakes we've been having. ETMY M0 and R0 both were hard to find good times for, so a couple of times chosen are not the best showcase of the new noise floor. For example, ETMY M0 L 'after' still has a lot of lower frequency noise that I wasn't able to regress out, and ETMY R0 L, T, and V 'after' also all clearly all have excess low frequency noise remaining due to an earthquake going through at the time. I think you can still generally get an idea of how much better the noise is though. I can run them again when we get a better comparison time.

MC1
Results:
/ligo/svncommon/SusSVN/sus/trunk/HSTS/H1/MC1/SAGM1/Results/allDampRegressCompare_H1SUSMC1_M1_NoiseComparison_1437192600vs1437240215-1200.pdf
r12495
Data:
/ligo/svncommon/SusSVN/sus/trunk/HSTS/H1/MC1/SAGM1/Data/dampRegress_H1SUSMC1_M1_1437192600_1200.mat
/ligo/svncommon/SusSVN/sus/trunk/HSTS/H1/MC1/SAGM1/Data/dampRegress_H1SUSMC1_M1_1437240215_1200.mat
r12495

MC3
Results:
/ligo/svncommon/SusSVN/sus/trunk/HSTS/H1/MC3/SAGM1/Results/allDampRegressCompare_H1SUSMC3_M1_NoiseComparison_1437115850vs1437282002-1200.pdf
r12496
Data:
/ligo/svncommon/SusSVN/sus/trunk/HSTS/H1/MC3/SAGM1/Data/dampRegress_H1SUSMC3_M1_1437115850_1200.mat
/ligo/svncommon/SusSVN/sus/trunk/HSTS/H1/MC3/SAGM1/Data/dampRegress_H1SUSMC3_M1_1437282002_1200.mat
r12496

TMSY
Results:
/ligo/svncommon/SusSVN/sus/trunk/TMTS/H1/TMSY/SAGM1/Results/allDampRegressCompare_H1SUSTMSY_M1_NoiseComparison_1437213557vs1437257352-1200.pdf
r12497
Data:
/ligo/svncommon/SusSVN/sus/trunk/TMTS/H1/TMSY/SAGM1/Data/dampRegress_H1SUSTMSY_M1_1437213557_1200.mat
/ligo/svncommon/SusSVN/sus/trunk/TMTS/H1/TMSY/SAGM1/Data/dampRegress_H1SUSTMSY_M1_1437257352_1200.mat
r12497

ETMY
M0
Results:
/ligo/svncommon/SusSVN/sus/trunk/QUAD/H1/ETMY/SAGM0/Results/allDampRegressCompare_H1SUSETMY_M0_NoiseComparison_1436521059vs1437280243-1200.pdf
r12498
Data:
/ligo/svncommon/SusSVN/sus/trunk/QUAD/H1/ETMY/SAGM0/Data/dampRegress_H1SUSETMY_M0_1436521059_1200.mat
/ligo/svncommon/SusSVN/sus/trunk/QUAD/H1/ETMY/SAGM0/Data/dampRegress_H1SUSETMY_M0_1437280243_1200.mat
r12498

R0
Results:
/ligo/svncommon/SusSVN/sus/trunk/QUAD/H1/ETMY/SAGR0/Results/allDampRegressCompare_H1SUSETMY_R0_NoiseComparison_1435436097vs1437438025-1200.pdf
r12499
Data:
/ligo/svncommon/SusSVN/sus/trunk/QUAD/H1/ETMY/SAGR0/Data/dampRegress_H1SUSETMY_R0_1435436097_1200.mat
/ligo/svncommon/SusSVN/sus/trunk/QUAD/H1/ETMY/SAGR0/Data/dampRegress_H1SUSETMY_R0_1437438025_1200.mat
r12499

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