ryan.short@LIGO.ORG - posted 16:02, Friday 11 August 2023 (72156)
Ops Day Shift Summary
TITLE: 08/11 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 147Mpc
INCOMING OPERATOR: Oli
SHIFT SUMMARY: Shift started troubleshooting locking issues eventually tracked down to recently modified SR2/3 damping gains (see alog 72152). Two short lock stretches in the morning to do some PEM injections while L1 was down. Back to observing by early afternoon, now locked for almost 3 hours.
- 1455 Holding in DRMI_LOCKED_PREP_ASC to fix SR2/3 damping gains
- 1600 NLN; automatic acquisition after DRMI
- Robert starting injections @ EY
- 1641 Lockloss, seemed fast, cause unknown
- 1740 Back to NLN, automatic acquisition
- Continuing EY injections
- 1900 Lockloss, seemed fast, cause unknown
- 1924 While relocking, locklosses at CHECK_AS_SHUTTERS and FIND_IR
- 2009 NLN, automatic acquisition
- 2028 Observing
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 15:56 | FAC | Randy | MX | - | Inventory | 17:56 |
| 15:56 | PEM | Robert | EY | - | PEM injections | 16:51 |
| 16:15 | FAC | Cindi | MY | - | Cleaning | 16:50 |
| 17:45 | FAC | Cindi | MY | - | Tech clean | 19:20 |
| 17:59 | PEM | Robert | EY | - | PEM injections | 19:10 |
| 18:54 | SEI | Jim | MX, MY | - | 3IFO inventory | 20:25 |
| 19:52 | PEM | Robert | EY | - | Shutting off amps, turning off lights | 20:18 |
| 20:25 | SEI | Jim | EY | - | Wind fence pic | 20:40 |
| 21:39 | CAL | Tony, Genevieve | PCal Lab | - | Cleaning up equipment | 22:32 |