TITLE: 12/21 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Commissioning (locked at NLN)
INCOMING OPERATOR: Oli
SHIFT SUMMARY: Took some time to wrangle alignment changes before locking this morning, then moved into commissioning time, which is ongoing. H1 has been locked at low noise for 5 hours.
- Shift started with H1 holding DOWN for a passing EQ
- 16:73 Ground has calmed down, starting initial alignment
- Alignment is bad (no ALS arm flashes)
- Noticed a rise in LVEA temps, trending optics shows ITMs have sagged slightly as a result - alog74964
- Using oplevs as a reference, bringing ITMs back to alignment from last time H1 was locking
- Camera spots and power traces looking much better now, continuing with alignment
- 18:10 Alignment finished, starting lock acquisition
- 18:20 Pausing at FIND_IR due to CDS work causing ISC_LOCK to have disconnected channels - alog74959
- 19:20 Started observing
- 21:37 Dropped observing for commissioning time
LOG:
| Start Time |
System |
Name |
Location |
Lazer_Haz |
Task |
Time End |
| 16:06 |
FAC |
Karen |
Optics Lab |
- |
Technical cleaning |
16:24 |
| 16:15 |
FAC |
Kim |
H2 |
- |
Technical cleaning |
16:26 |
| 17:30 |
FAC |
Tyler, contractor |
MY |
- |
|
18:44 |
| 21:20 |
TCS |
Tony |
MER |
- |
Check TCS chillers |
21:36 |