ryan.crouch@LIGO.ORG - posted 16:32, Wednesday 11 December 2024 (81763)
OPS Wednesday DAY shift summary
TITLE: 12/12 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 155Mpc
INCOMING OPERATOR: Ryan S
SHIFT SUMMARY: We stayed locked the entire shift, over 23 hours as of 00:30 UTC. Lost of investigations into the range drops today, range has been steady since the last occurance ~14hours ago. If the drop happens again there's a plan to investigate out of observing alog81774.
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 16:53 | OPS | LVEA | LVEA | YES | LVEA IS LASER HAZARD | 21:13 |
| 15:56 | FAC | Tyler | MidX | N | Crane inspection, FCES next (~10/11am?) | 18:24 |
| 16:07 | FAC | Karen | Optics lab, vac prep | N | Tech clean | 16:51 |
| 16:34 | FAC | Chris | Midx | N | Join Tyler | 17:01 |
| 16:51 | FAC | KAren | OSB recieving | N | Cardboard moving, door rollup | 17:02 |
| 17:01 | FAC | Chris | Midx | N | Driving a trailer | 18:24 |
| 17:02 | FAC | Karen | Woodshop, firepump room | N | Tech clean | 17:14 |
| 18:24 | FAC | Tyler | FCES | N | Crane inspection | 18:35 |
| 18:59 | PSL | Jason | Optics lab | N | Put away optic | 19:05 |
| 19:18 | VAC | Gerardo | OSB recieving | N | Loading and moving away parts | 19:22 |
| 19:21 | FAC | Chris | OSB recieving | N | Moving the van away | 19:25 |
| 21:07 | CAL | Francisco | PCAL lab | LOCAL | PCAL work | 21:38 |
- The VAC prep dust monitor is offline, I also reset the DM alarm levels that were reset yesterday following E1600132
- 18:24 UTC Tyler and the crane crew started down the gravel road to the FCES, into the enclosure at 18:26 and they left at 18:35 UTC (tagging DetChar)
- ~22:00 UTC I noticed the SQZ_PMC GRD notifying about the PMC VOLTs being low
- 22:05 UTC the SQZer lost lock and dropped us out of Observing
- The FC struggled to relock, FC2 P was very misaligned. I brought it closer to where it was when we last locked until it was close enough for FC-ASC to take over
- 22:22 UTC Observing
- After lots of trending I think I found another ALS channel thats witnessing something related to the range drops, H1:ALS-Y_WFS_B_DC_YAW_OUT16 but I imagine its related to the 2 ALS_Y_WFS_B_DC channels IDed in alog81764
- 23:40 UTC BSC3 vac pressure glitch at PT132
Images attached to this report
