Last week (87801) Jeff took a bunch of transfer function measurements for PRM for the PRM L, P, and Y estimators. There were some he wasn't able to take:
- H1ISIHAM2 to H1SUSPRM M1 for all dofs with DAMP L, P, and Y all with 20% gain
- H1ISIHAM2 to H1SUSPRM M1 for all dofs with DAMP Y at 20% gain
- H1SUSPRM M1 to M1 for V, R, P, Y with DAMP Y at 20% gain
Today I was able to get the first two bullet points done
Measurements:
First, I made sure the SUSPOINT matrix had the correct values for driving PRM, which it did.
First set (L P Y DAMP gain at 20%):
L, P and Y DAMP gains were set to 20% of their nominal values, so they were set to -0.1, and T, V, and R were left at their nominal -0.5 gain values.
Measurements can be found in
/ligo/svncommon/SusSVN/sus/trunk/HSTS/H1/PRM/Common/Data/2025-11-04_1800_H1ISIHAM2_ST1_PRMSusPoint_M1LPYDampingGain0p1_WhiteNoise_*_0p02to50Hz.xml r12766
Second set (Y DAMP gain at 20%):
After those measurements were taken, I set the L and P DAMP gains back to their nominal values of -0.5 and took another set of SUSPOINT measurements with only the Y gain at 20%.
Those measurements can be found in
/ligo/svncommon/SusSVN/sus/trunk/HSTS/H1/PRM/Common/Data/2025-11-04_1930_H1ISIHAM2_ST1_PRMSusPoint_M1YawDampingGain0p1_WhiteNoise_*_0p02to50Hz.xml r12767
I ran out of time and wasn't able to finish the four M1 to M1 dofs that were left for the reduced Y damping, so we'll have to get those next week.
I also wasn't able to get in any measurements for SRM, but that's okay since we're not in a rush.