TITLE: 11/19 Eve Shift: 0030-0600 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY:

H1 had a lockloss from an unknown source early on in my shift, but after an alignment, relocking went easily. Since then, I've been tuning magnetic injection parameters to be used later this week. Also had an alarm for an annulus ion pump at the Y-arm BTM, so I phoned Travis as I was unsure how critical this was. He took a look into it and believes addressing this can wait until morning.

I've set the remote owl operator so that H1 will relock overnight if it unlocks for some reason so that it's ready to go in the morning, but no calls will be made for help. H1 will also start observing, if it can, on the off-chance there's a potential candidate signal.

Sheila has started a script to change the SQZ angle while in frequency independent squeezing, which should take about 90 minutes and will put settings back to nominal when done, at which point H1 should go into observing.

• 00:39 - Lockloss
• 01:23 - Running initial alignment
• 02:31 - Low Noise