J. Kissel

Continuing on the campaign of gathering open loop gain (and loop suppression & closed loop gain TFs), I measured H1SUSITMX's reaction chain R0 damping loops this morning -- see
    /ligo/svncommon/SusSVN/sus/trunk/QUAD/H1/ITMX/SAGR0/Data/
        2025-07-08_1530_H1SUSITMX_R0_WhiteNoise_L_0p02to50Hz_OpenLoopGainTF.xml
        2025-07-08_1530_H1SUSITMX_R0_WhiteNoise_P_0p02to50Hz_OpenLoopGainTF.xml
        2025-07-08_1530_H1SUSITMX_R0_WhiteNoise_R_0p02to50Hz_OpenLoopGainTF.xml
        2025-07-08_1530_H1SUSITMX_R0_WhiteNoise_T_0p02to50Hz_OpenLoopGainTF.xml
        2025-07-08_1530_H1SUSITMX_R0_WhiteNoise_V_0p02to50Hz_OpenLoopGainTF.xml
        2025-07-08_1530_H1SUSITMX_R0_WhiteNoise_Y_0p02to50Hz_OpenLoopGainTF.xml

SUS was in new HEALTH_CHECK state, so R0 tracking is OFF and alignment offsets are OFF, but damping loops are *on.*
SEI / HPI / ISI was FULLY_ISOLATED, in its best performing state.

Data analysis and commentary to come.