Reports until 16:42, Thursday 28 August 2025
H1 General
anthony.sanchez@LIGO.ORG - posted 16:42, Thursday 28 August 2025 (86638)
Ops Day shift summary

TITLE: 08/28 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 153Mpc
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY:
Comissioning was cut short due to an ill timed Lockloss during the Calibration Simuline sweep.
Vacuum team is running a pump in their Vac Lair for about an Hour starting around 18:30 But they stopped before NLN.
Jeff and Robert got a few tests done today from 1900-1930 UTC 

NLN reached at 19:06 UTC
Back to observing at 19:30:43 UTC
Another Lockloss at 20:37:23 UTC

Back to Observing at 21:51 UTC, But there was an interesting PR3 SDF Diff that was going to wake up the OWL Shift. so we dropped to commissioning at 21:51 UTC.
Back to Observing at 21:53 UTC.

Elenna found the Issue and loaded ISC_ LOCK which took us back down to commissioning again for 2 secs at 22:00:29 UTC.
and Finally Back to Observing again at 22:00:31 UTC. 
GRB-Short E595035

LOG:
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

Start Time System Name Location Lazer_Haz Task Time End
15:01 FAC Kim & Nellie Receiving N Loading cart 15:31
15:01 PEM Robert LVEA N Setting up shakers 15:48
16:00 FAC Kim Optics lab N Technical Cleaning 16:30
16:29 EE Marc LVEA N Looking for tools. 16:36
16:37 SUS Betsy LVEA Highbay N Getting parts. 16:22
16:47 PEM Robert LVEA N Settign up PEM equipment for Acoustic injections 18:16
18:58 SUS Jeff Control Rm N PR3 Estimating 19:30
19:08 PEM Robert Control RM & LVEA N Running sweeps through 10 - 40 hz 19:28
20:59 Cbex Tyler & CBEX Mid Y N Geo Survey 23:59
22:12 VAC Anna & Janos Mid X N Taking measurements and checking on 343B Pump 22:42
23:08 EE Marc Optics lab N Making connector 23:53