ibrahim.abouelfettouh@LIGO.ORG - posted 16:30, Friday 14 June 2024 - last comment - 17:04, Friday 14 June 2024(78448)
OPS Day Shift Summary
TITLE: 06/14 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 147Mpc
INCOMING OPERATOR: Oli
SHIFT SUMMARY:
IFO is in NLN and OBSERVING as of 21:33 UTC.
21:07 UTC to 21:33 UTC: COMISSIONING
19:28 UTC to 21:07 UTC: OBSERVING
Things of note:
- Sheila, Camilla and I investigated SRCL FF mistuning that showed up on the low range checks - alog 78441 - this was our 30 mins of comissioning that improved the mistuning (as shown in the alog). All in all, an LSC SRC Offset was changed - SDF Diff below.
- A2l script was edited, used and SDF diffs were accepted (and some reverted). This is documented in both alog 78439 (midshift update) and alog 78438.
- ISC_LOCK was also loaded while OBSERVING after changes were made so we dropped in and out of observing briefly (4 seconds) due to that.
- ITMY CPS Glitch occured at 22:46 UTC - first time I've seen this.
- Hanford Fire Dept. visited and asked to go down the arms, to which I refused since we were in Observing. They went to the kitchen patio area, turned around, then left.
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 15:29 | PCAL | Tony | Pcal Lab | Local | LLO Measurements | 17:59 |
| 16:33 | PCAL | Francisco | Pcal Lab | Local | LLO Measurements | 17:21 |
| 17:13 | SQZ | Sheila | LVEA | Y | Move magnetometer | 17:59 |
| 19:03 | PCAL | Tony, Miriam | PCAL Lab | N | LLO Measurements | 19:55 |
| 19:43 | RUN | Camilla, Neil | Y Arm | N | Improve and/or maintain health | 19:43 |
| 19:56 | PCAL | Francisco | PCAL | N | Preparing for lab upgrade steps | 19:58 |
| 22:12 | PCAL | Francisco, Miriam | PCAL Lab | Local | Preparing for lab upgrade steps | 22:40 |
| 22:41 | SAF | LVEA | LVEA | YES | LVEA IS LASER HAZARD | 15:52 |
| 22:42 | WALK | Francisco, Miriam | Overpass | N | Walking | 23:02 |
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Comments related to this report
SRCLFF gain started as 1.14, was adjusted to 1.2 then readjusted to 1.18. First sdf accepted attached.
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