Reports until 08:37, Sunday 26 May 2024
H1 SEI (Lockloss)
anthony.sanchez@LIGO.ORG - posted 08:37, Sunday 26 May 2024 (78050)
Sunday Ops Morning shift Start

TITLE: 05/26 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Aligning
OUTGOING OPERATOR: TJ
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 9mph Gusts, 5mph 5min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.07 μm/s
QUICK SUMMARY:

When I got in the ISI ITMX(BSC3) watch dog had been tripped and already reset via software.  I called Jim and let him know that there was not an earthquake that caused the watchdog trip it but a CPS glitch as Tj pointed out in his alog
He asked me to power cycle the 3 BSC3 ISI Interface chassis in the SEI-C6 rack via the 3 DC power switches on the back side of the chassis .  

Lockloss from a 13 hour lockdue to a CPS glitch.
https://ldas-jobs.ligo-wa.caltech.edu/~lockloss/index.cgi?event=1400768048
Screen Shot attached.

While typing out this alog the IFO has been locking and has cycled through check mich fringes a number of times already, I'm doing an Initial_Alignment now.



 

Images attached to this report