Starting up on the work for the PR3 estimator, we first need to recalibrate the OSEM gains, so I took some HAM2 ISO to PR3 DAMP measurements.

Settings:

• PR3 ALIGNED
• DAMP gains at -0.2 (nominally -1)

Measurements:

/ligo/svncommon/SusSVN/sus/trunk/HLTS/H1/PR3/Common/Data/2025-08-05_1700_H1ISIHAM2_ST1_WhiteNoise_ISO_{X,Y,Z}_0p05to40Hz_calibration.xml
r12518

And to clarify (since it's different from the coupling between HAM5 and SR3, the coupling is:

ISO X -> PR3 L
ISO Y -> PR3 T
ISO Z -> PR3 V