Reports until 16:34, Thursday 21 August 2025
LHO General
thomas.shaffer@LIGO.ORG - posted 16:34, Thursday 21 August 2025 (86490)
Ops Day Shift End

TITLE: 08/21 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 151Mpc
INCOMING OPERATOR: Corey
SHIFT SUMMARY: Locked for 3 hours. We had one lock loss during commissioning today, which had an automated relock. The SR3 OSEM esitmators are running now, but that is the only notable change to the IFO. There have been many trips out to the OSB vertex area to escort contractors, mark utilities, and search for a valve out in the hydrant area. Times in the log.
LOG:

Start Time System Name Location Lazer_Haz Task Time End
15:01 SPI Jeff Opt Lab n Inventory 15:31
15:15 FAC Kim Opt Lab n Tech clean 15:38
15:52 VAC Travis MY n Craning and prepping for pump 17:50
16:22 FAC Tyler, Watts Vertex n Hydrant inspect and plan 17:25
16:28 FAC Richard Vertex n Metal detecting the shutoff valve 18:55
16:48 FAC Kim H2 build n Tech clean 17:13
17:25 FAC Kim MY n Tech clean 18:07
17:33 CAL Rick, Tony PCal Lab Local Measurements 18:34
17:41 CDS Fil, Marc MY N Parts delivery/pickup 18:18
19:41 FAC Randy MX n Equipment check 20:06
20:48 FAC Tyler, contractor vertex n Marking hydrant 21:14
21:55 FAC Richard, Fil, Tyler Vertex n Hydrant searchign 22:00
22:17 FAC Tyler FCES n Taking picutres outside the building (2223-2224UTC at building) 22:29