The first page of the figure shows that there was a gain of 2 or 3 Mpc when the EX HVAC was shut down. The second page shows DARM for this series of tests, with the most evident difference in the 38-45 Hz range. We have already realized much of the potential improvement with damping of the cryobaffle by significantly reducing the noise from fans in the 4 Hz region over the last couple of months and reducing the 52 Hz peak over the weekend, so I dont expect more than a couple of Mpc improvement with damping.

EX HVAC (fans, chillers cw pump) on-off tests:

Start shutting down: 20:00

Start turning on: 20:15

Start shutting down 20:30

Start turning on: 20:45

Start shutting down: 21:00

Start turning on: 21:15