Reports until 17:10, Monday 30 October 2023
H1 PSL
ryan.crouch@LIGO.ORG - posted 17:10, Monday 30 October 2023 (73852)
PSL 10-day Trends

There was a glitch seen in 2 of the scopes that corresponds to Tuesday maintenance.

Cooling: CB2 temperature is fluctuating more than it usually does and the CB1 temperature fluctuations are higher than they usually are, by almost a factor of 2 (~half a degree to a full degree).

Laser Trends: The laser room, anteroom, chiller room, and diode room RH channels have dropped significantly over the past week. All the room temperature fluctuations have increased as well.

Environment: AMP1_LD{3,4} have dropped a bit over the past week.

Stabilization: The FSS_TPD power has decayed rapidly over the past 4 days as seen by the "RefCav transmission is low" DIAG_MAIN notification. The PMC_REFL power was slightly stepped down last Tuesday, the 24th.

Images attached to this report