kyle.ryan@LIGO.ORG - posted 13:46, Tuesday 13 June 2017 - last comment - 14:07, Wednesday 14 June 2017(36857)
Pumping vacuum jacket of CP3's LN2 storage tank at Y-mid
WP #7037 10:30 am, local time -> As found, CP3's dewar vacuum jacket measured 230 microns -> Began pumping using two-stage scroll pump with energize-to-open isolation valve Noon, local time -> 140 microns
Checked pressure this morning (16:24 UTC/9:24 PDT), and is now sitting at 46 microns.