J. Kissel

Mostly because I got a demand from LLO for BSFM open loop gain transfer function templates (see their related work in, e.g. LLO:65891), and also because the H1 IFO's laser were down, I made the time useful by creating them. Data lives in 
    /ligo/svncommon/SusSVN/sus/trunk/BSFM/H1/BS/SAGM1/Data/
        2023-07-12_2000_H1SUSBS_M1_CDBIOState_1_WhiteNoise_L_0p01to50Hz_OpenLoopGainTF.xml
        2023-07-12_2000_H1SUSBS_M1_CDBIOState_1_WhiteNoise_P_0p01to50Hz_OpenLoopGainTF.xml
        2023-07-12_2000_H1SUSBS_M1_CDBIOState_1_WhiteNoise_R_0p01to50Hz_OpenLoopGainTF.xml
        2023-07-12_2000_H1SUSBS_M1_CDBIOState_1_WhiteNoise_T_0p01to50Hz_OpenLoopGainTF.xml
        2023-07-12_2000_H1SUSBS_M1_CDBIOState_1_WhiteNoise_V_0p01to50Hz_OpenLoopGainTF.xml
        2023-07-12_2000_H1SUSBS_M1_CDBIOState_1_WhiteNoise_Y_0p01to50Hz_OpenLoopGainTF.xml
 

The data was taken with the M1 coil driver state in State 1 (LP OFF, in its highest range), and with the optical lever damping turned OFF.
The M1 damping loop filters and configuration are shown in the attachment. 

Actual answers from these measurements to come.
It'll also be interesting to compare oplev damping ON vs. OFF.