Reports until 11:34, Friday 26 December 2025
H1 General (OpsInfo, PSL, SEI, SUS)
anthony.sanchez@LIGO.ORG - posted 11:34, Friday 26 December 2025 (88659)
Boxing day Ops Checkin

TITLE: 12/26 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
OUTGOING OPERATOR: None
CURRENT ENVIRONMENT:
    SEI_ENV state: MAINTENANCE
    Wind: 25mph Gusts, 16mph 3min avg
    Primary useism: 0.05 μm/s
    Secondary useism: 0.90 μm/s 
QUICK SUMMARY:
Cameras:
Everything looks fine currently.  
Lights were left on in the Woodshop & OSB 163, ifsomeone is heading to site. 


SEI: Looks as I'd expect it to look. HAM7 is red because it's had people in and out of it since before the break. I imagine leaving that watchdog tripped is fine.
SUS: Seems to be looking reasonable as well considering the OPO and Jack work that was being done before break.



PSL Status: 

Laser Status:
    NPRO output power is 1.84W
    AMP1 output power is 70.51W
    AMP2 output power is 139.4W
    NPRO watchdog is GREEN
    AMP1 watchdog is GREEN
    AMP2 watchdog is GREEN
    PDWD watchdog is GREEN

PMC:
    It has been locked 16 days, 17 hr 48 minutes
    Reflected power = 25.41W
    Transmitted power = 106.2W
    PowerSum = 131.6W

FSS:
    It has been locked for 2 days 23 hr and 15 min
    TPD[V] = 0.5254V

ISS:
    The diffracted power is around 3.7%
    Last saturation event was 2 days 22 hours and 25 minutes ago


Possible Issues:
        PMC reflected power is high
 

 

VEA Temps:

LVEA looks good for the last day.

The HAM Shaq looks good.

Arm VEAs

Images attached to this report