Sharan Banagiri, Philippe Nguyen, Robert Schofield

We found low-level coupling when we shook the reduction flange by the ITMX optical levers, we repeated several impulse injections to give higher SNR, and we tried to narrow down, without success, the coupling site that produces a 48 Hz peak in DARM when we make broad band acoustic injections.

Times: 21:20 - 23:25 UTC