Reports until 16:31, Monday 28 July 2025
LHO General
ibrahim.abouelfettouh@LIGO.ORG - posted 16:31, Monday 28 July 2025 (86041)
OPS Day Shift Summary

TITLE: 07/28 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Earthquake
INCOMING OPERATOR: Corey
SHIFT SUMMARY:

IFO is in DOWN due to ENVIRONMENT

While H1 itself is very well behaved, the earth today is not. Comissioning went well, though there were two locklosses, one potentially comissioner caused (lockloss alog 86023), and another caused by the ETM_GLITCH (lockloss alog 86025). 10 minutes after the second lockloss, a 6.5 EQ from malaysia hit. After that rung down, we managed to vget to MOVE_SPOTS until a 7.0 south of NZ (+aftershocks) hit.

Other than that, there have been no actual issues with locking or anything else IFO-side.
LOG:

Start Time System Name Location Lazer_Haz Task Time End
21:06 SAF LVEA IS LASER HAZARD LVEA Y LVEA IS LASER HAZARD 22:03
15:28 SUS Randy MY N Delivery 15:56
16:04 FAC Nellie Mid Y N Technical Cleaning 16:47
16:47 FAC Kim MX N Technical Cleaning 17:41
17:28 AOS Keita Optics Lab Local Picomotor inventory check 18:15
18:11 VAC Travis MX N Hauling parts 20:27
19:47 CDS Dave EX N Checking out the Dolphin switch hardware. 20:08
20:07 VAC Jordan, Gerardo, Travis LVEA Y Troubleshooting pump BSC8 20:29
21:19 VAC Gerardo FCES N Parts collection for maintenance prep 23:18