anthony.sanchez@LIGO.ORG - posted 11:49, Sunday 24 September 2023 - last comment - 18:16, Sunday 24 September 2023(73078)
PSL Weekly Famis 26210
Laser Status:
NPRO output power is 1.829W (nominal ~2W)
AMP1 output power is 67.07W (nominal ~70W)
AMP2 output power is 134.8W (nominal 135-140W)
NPRO watchdog is RED
AMP1 watchdog is RED
AMP2 watchdog is RED
PMC:
It has been locked 2 days, 4 hr 17 minutes
Reflected power = 16.19W
Transmitted power = 109.8W
PowerSum = 126.0W
FSS:
It has been locked for 0 days 7 hr and 33 min
TPD[V] = 0.8411V
ISS:
The diffracted power is around 1.8%
Last saturation event was 0 days 7 hours and 33 minutes ago
Possible Issues:
NPRO watchdog is inactive
AMP1 watchdog is inactive
AMP2 watchdog is inactive
ISS diffracted power is low
It seems I had forgotten to turn the power watchdogs back on after recovering the PSL Friday morning (this shows exactly why we have this weekly FAMIS task to check for these things). I was able to log in and turn the watchdogs on shortly after 01:00 UTC this evening. H1 did not have to drop observing for this as the power watchdogs are just Beckhoff controlled and not monitored by SDF.
The ISS diffracted power still needs adjusting; we'll wait for a lockloss to do that.