thomas.shaffer@LIGO.ORG - posted 16:31, Wednesday 20 August 2025 (86476)
Ops Day Shift End
TITLE: 08/20 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 1 hour after a fast lock loss (alog86483). Reacquisition was straight forward but I did need to run an initial alignment.
LOG:
- 1725-1742 Fire pump 1 on due to hydrant work
- 1745 HDF offsite
- 2055 Lock loss
- 2233 Observing
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 15:54 | FAC | Kim | Opt Lab | n | Tech clean | 17:54 |
| 16:27 | FAC | Tyler, HFD | Vertex | n | Hydrant fix | 17:55 |
| 17:55 | FAC | Kim | MX | n | Tech clean | 18:33 |
| 18:35 | ISC | Camilla | Opt Lab | n | Parts bin | 19:26 |
| 20:03 | FAC | Tyler | Vertex | n | Taking photos of the leaky hydrant | 20:08 |
| 21:02 | SPI | Jeff | Opt Lab | n | Inventory | 21:17 |
| 21:05 | SPI | Rick, Dripta, Tony | PCAL lab | yes | SPI BS meas. | 22:41 |