Reports until 16:32, Friday 21 August 2026
LHO General
ryan.short@LIGO.ORG - posted 16:32, Friday 21 August 2026 (91644)
Ops Day Shift Summary

TITLE: 08/21 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY: Quiet day for the most part with a Beckhoff reboot, more alignment work with ALS troubleshooting, various PEM activities, and a couple of tour groups. The JAC temperature servo still appears to be settling out slowly since the reboot, causing the JAC to unlock periodically (trend attached). The LVEA remains Laser HAZARD.
LOG:

Start Time System Name Location Lazer_Haz Task Time End
17:29 CDS Daniel CR - Beckhoff computer restart 17:55
18:34 PEM Robert, Reinhardt LVEA - Shaker on output arm 23:23
21:46 PEM Miranda, Shrey MER - Set up seismometers 22:15
22:19 PEM Robert EX - Troubleshooting ground injection Ongoing
22:21 ISC Keita LVEA Y Checking beams on ISCT1 Ongoing
23:24 PEM Reinhardt LVEA - Checking on DAS fiber Ongoing
Images attached to this report