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Reports until 10:52, Tuesday 03 December 2019
H1 PSL
jason.oberling@LIGO.ORG - posted 10:52, Tuesday 03 December 2019 (53648)
PSL FSS RefCav Beam Alignment Tweak and Weekly Watchdog Reset (FAMIS 10739)

This morning I tweaked the beam alignment into the FSS RefCav; the TPD had dropped to ~2.8V.  Unfortunately, I was only able to get the TPD back to ~3.4V by tweaking the beam alignment (instead of the 4.7V we had at the end of the last adjustment).  We just had a storm system move through the area over the weekend (these drops seem to coincide with storms moving through), so I'll monitor the RefCav TPD throughout the week to see if it returns to normal.  If it doesn't, then an enclosure incursion during the next maintenance window may be necessary to tweak the FSS alignment.

I reset both PSL power watchdogs at 17:40 UTC (9:40 PST).  This completes FAMIS 10739.

Displaying report 1-1 of 1.