J. Kissel

The ETMs have L2 to R0 "tracking" in longitudinal (in addition to pitch and roll "damping") L2 sensing to R0 actuation. It's referred to as "tracking" rather than "damping" because the open loop gain is greater than unity over a much broader frequency region, focusing around 0.1 Hz.
These, like the P and R damping, didn't change after the sat amp swaps.

The templates to take this data lives here:
    /ligo/svncommon/SusSVN/sus/trunk/QUAD/H1/ETMY/SAGR0/Data
        2025-10-14_1830UTC_H1SUSETMY_R0_WhiteNoise_0p02to50Hz_L2DAMP_OLGTF_L.xml

    /ligo/svncommon/SusSVN/sus/trunk/QUAD/H1/ETMX/SAGR0/Data
        2025-10-14_1830UTC_H1SUSETMX_R0_WhiteNoise_0p02to50Hz_L2DAMP_OLGTF_L.xml