Reports until 08:14, Friday 20 September 2024
H1 PSL
ryan.crouch@LIGO.ORG - posted 08:14, Friday 20 September 2024 (80205)
PSL Status Report - Weekly

Closes FAMIS26298


Laser Status:
    NPRO output power is 1.824W (nominal ~2W)
    AMP1 output power is 64.37W (nominal ~70W)
    AMP2 output power is 137.4W (nominal 135-140W)
    NPRO watchdog is GREEN
    AMP1 watchdog is GREEN
    AMP2 watchdog is GREEN
    PDWD watchdog is GREEN

PMC:
    It has been locked 23 days, 21 hr 37 minutes
    Reflected power = 22.08W
    Transmitted power = 104.2W
    PowerSum = 126.3W

FSS:
    It has been locked for 0 days 11 hr and 13 min
    TPD[V] = 0.804V

ISS:
    The diffracted power is around 2.2%
    Last saturation event was 0 days 11 hours and 13 minutes ago


Possible Issues:
    AMP1 power is low, there was a step down about 47 days ago.
    PMC reflected power is high, it appears to have been rising for the past >2 months.

Images attached to this report