Displaying report 1-1 of 1.
Reports until 21:23, Wednesday 10 July 2024
H1 General
oli.patane@LIGO.ORG - posted 21:23, Wednesday 10 July 2024 (79014)
Ops Eve Midshift Status

Just started an initial alignment.

After the lockloss (79012), wind was above 30mph and stayed that high for the next hour, and I believe that might be the reason why while trying to relock in FIND_IR, we would get XARM up but then lose lock before being able to try getting YARM up. In the past we have been able to relock with the winds this high, but I guess not today. While trying to troubleshoot this, we had a large earthquake hit us from the Phillipines (at 02:26 UTC), and just a few minutes ago the ground calmed enough for me to start another initial alignment.

Something strange that may or may not be related to the issues getting through FIND_IR is that after the lockloss and initial alignment, the DCPDs started growing (attachment). This growth in noise seems to turn 'on' and 'off' as the detector was trying to get past FIND_IR.

It's seemed to start increasing again while locking green arms in my current initial alignment.

Images attached to this report
Displaying report 1-1 of 1.