SWEB has been put under vacuum this morning. The pumping started at 6:11 UTC. It was stopped around 8 UTC.

No obvious leak is observed for the time being. The pressure evolution of the various air boxes (top plots of the attached figure) is driven by their temperature drift (bottom plots) due to the move to vacuum, or when the beam hit the photodiodes and quadrants after 12:10 UTC. The minitower pressure is the top right plot (VAC_TOWERWE_MG2_CH6 channel)