TITLE: 12/18 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Commissioning
INCOMING OPERATOR: Austin
SHIFT SUMMARY:
IFO is LOCKING and at CARM_TO_ANALOG
16:09 UTC - Lockloss from NLN - alog 74864
16:48 UTC - Lockloss at Max_Power - due to 6.0 EQ in China
- Staying down after 3rd ALS/IR lockloss due to EQ microseism - it doesn’t look terrible so will try again in 15 minutes.
- Resumed at 17:14 UTC
17:00(ish) UTC - Power cycled Nuc35 due to the screen crashing and not responding.
17:12 UTC - Fire alarm panel went off. Tyler called a few seconds after saying it was a false alarm/to be expected due to work he was doing. Alarm stopped shortly after
18:00 UTC Reached OMC_Whitening but violins are quite high - NLN reached at 19:07 UTC. It took 1 hour and 7 mins for violins to be low enough to go through whitening (Tagging SUS).
19:07 UTC - Reached OBSERVING
22:01 UTC - COMMISSIONING - went into planned commissioning. Expected to continue until around 00:00 UTC.
22:35 - 22:39 UTC - Took a broadband calibration measurement. (screenshot)
23:46 UTC - Lockloss during commissioning during Simulines calibration - alog 74874
Other: MX/Woodshop Access Door Issue - people with access can’t get in. Fil is working on it and seems to have fixed it.
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 23:11 | EE | Nutsinee | Optics Lab | Local | Running tests | 00:04 |
| 17:59 | SUS | Randy | CS, EX, EY | N | Site tour of all locks | 19:28 |
| 17:21 | SUS | Randy | MX | N | Inventory | 19:25 |
| 17:40 | FAC | Kim | MX | N | Technical Cleaning | 19:25 |
| 16:41 | FAC | Karen | Optics Lab, MY | N | Technical Cleaning | 18:16 |
the broadband measurement mentioned is located at /ligo/groups/cal/H1/measurements/PCALY2DARM_BB/PCALY2DARM_BB_20231218T223413Z.xml. We had this measurement taken to evaluate the state of the calibration with OM2 in the cold state. The OM2 was cooled off again in LHO:74861.