thomas.shaffer@LIGO.ORG - posted 16:31, Monday 31 August 2026 (91742)
Ops Day Shift Start
TITLE: 08/31 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Commissioning
INCOMING OPERATOR: Oli
SHIFT SUMMARY:
- Morning started out trying to lock the IMC. The IMC was set to DOWN on Saturday, but in the down state the triggering is still on, so it was triggering the rest of the weekend and the WFS were following. I set the trigger threshold in DOWN to be an absurd number, then Jenne moved the MCs back to their alignments before it was set to DOWN. Then it locked.
- The remainder of the day was spent converting ALS_DIFF to use ETMY
- EX VEA HVAC changes to help stabilize the temperature - 91751
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 15:30 | FAC | Kim | MY, MX | n | Tech clean | 17:00 |
| 17:01 | FAC | Kim | FCES | n | Tech clean | 18:20 |
| 17:20 | CDS | Fil | EY | n | ESD troubleshooting | 18:09 |
| 19:25 | FAC | Chris | FCES | n | Saving a snake | 19:26 |
| 20:52 | CDS | Jackie | Mech Room | n | BDH chassis install on mezz | 22:14 |
| 21:47 | VAC | Gerardo, Jordan | EY, EX | n | EY annulus ion pump troubleshooting, then to EX to prep for TMDS | 22:34 |
| 22:23 | TCS | Camilla, Jackie | CHETA Lab | n | Popping in | 22:35 |