We opened the YEND to the beam tube today for ~9 hours.

The attached plot shows the pressures during the day at the BSC10 dome(pt410) and at the 80k pump(pt 424).

The pressure at the trap reached 3e-8 torr.

At ~7:00pm local time I closed GV18 , opened the valve to the main turbo, and opened the small turbo pump to the BSC6 annulus.