Reports until 11:14, Monday 11 December 2023
H1 PSL
ryan.short@LIGO.ORG - posted 11:14, Monday 11 December 2023 (74739)
PSL 10-Day Trends

FAMIS 20006

Between roughly 6 and 4 days ago, the regular temperature spikes seen in the control boxes, diode room, and chiller room readbacks stopped, meaning the temperatures there were more stable for that time. This does not seem to have had an effect on laser perfomance that I can see. I have yet to find a cause of this; maybe a fan in the chiller/diode room area was changed? Whatever changed, it was undone ~4 days ago and the behavior of these temperature channels has returned to normal.

The PMC temp output jumped up by about 0.3 about 3 days ago; unsure yet as to why.

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