ryan.short@LIGO.ORG - posted 16:36, Tuesday 05 August 2025 (86212)
Ops Day Shift Summary
TITLE: 08/05 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 147Mpc
INCOMING OPERATOR: Ibrahim
SHIFT SUMMARY: Relatively straightforward maintenance day where we were able to get back to observing before 1pm local time before a fire alarm caused a lockloss. Relocking was a bit of a struggle with DRMI taking a long time, but after running another initial alignment, H1 relocked without issue on its own. H1 has been locked and observing for just over an hour.
LOG:
- 14:54 - Lockloss during charge measurements - alog86196
- Start of maintenance period; SEI sensor correction OFF
- 18:05 - Many maintenance tasks finished, going to try and start alignment
- SEI sensor correction ON
- Having to pause before INPUT_ALIGN for SR3 measurements to finish
- 18:56 - Initial alignment finished, starting lock acquisition
- 19:50 - Observing; fully automatic acquisition
- 20:00 - Lockloss from fire alarm - alog86206
- 21:14 - Starting lock acquisition
- 21:12 - Locking has been frustrating with several low-state locklosses and DRMI not locking despite good flashes; starting initial alignment
- 21:29 - Alignment finished
- 22:22 - Observing; fully automatic acquisiton
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 15:00 | FAC | Randy, Mitchell | LVEA | N | Craning for BSC2 platform install | 17:00 |
| 15:02 | FAC | Kim, Nelly | LVEA | N | Technical cleaning | 16:24 |
| 15:03 | FAC | Chris | All bldgs. | N | Pest ctrl | 17:21 |
| 15:04 | VAC | Janos | MX | N | Pump installation | 19:03 |
| 15:08 | CDS | Fil | LVEA | N | BSC2 platform work, JAC electronics install, HAM6 rack work | 15:44 |
| 15:10 | FAC | Tyler | LVEA | N | Moving Genie lift | 17:04 |
| 15:14 | VAC | Gerardo | LVEA | N | Starting pumps | 17:14 |
| 15:14 | FAC | Eric | MER | N | Checking heating coil | 15:25 |
| 15:19 | VAC | Travis | MX/FCES/LVEA | N | Pump installation | 19:03 |
| 15:30 | PSL | RyanS, Jason | CR | N | PMC/RefCav alignment | 15:35 |
| 15:35 | SUS | Jason | LVEA | N | Parts to OpLev cabinet | 15:41 |
| 15:51 | SUS | Fil | FCES | N | FC1/2 sat amp swaps | 17:05 |
| 16:01 | SEI | Erik | Remote | N | Restarting seismon | 16:03 |
| 16:01 | FAC | Richard | LVEA | N | Safety checks | 16:16 |
| 16:36 | FAC | Nelly | EY | N | Technical cleaning | 17:27 |
| 16:36 | FAC | Kim | EX | N | Technical cleaning | 17:36 |
| 16:41 | SUS | Oli | CR | N | SR3 & PR3 measurements | 18:42 |
| 16:51 | PEM | RyanC | LVEA | N | Looking for dust monitor | 17:14 |
| 17:01 | FAC | Mitchell, Randy | EY | N | Removing BSC braces | 17:48 |
| 17:06 | SUS | Fil | LVEA | N | OMC, IM sat amp swaps | 17:59 |
| 17:13 | SEI | Jim | EX | N | Cleaning off HEPI pump station | 17:53 |
| 17:17 | CDS | Erik | Remote | N | Rebooting digivideo2 | 17:27 |
| 17:17 | EPO | Camilla, Leo +1 | LVEA | N | Tour | 17:58 |
| 17:21 | FAC | Chris | LVEA | N | FAMIS checks | 18:35 |
| 17:28 | FAC | Nelly | FCES | N | Technical cleaning | 17:58 |
| 17:35 | PEM | Robert, Sam | LVEA, OptLab | N | Noise hunting | 18:04 |
| 17:40 | FAC | Kim | FCES | N | Technical cleaning | 17:58 |
| 17:48 | FAC | Mitchell, Randy | EX | N | Looking for parts | 18:26 |
| 17:50 | SUS | Jeff | LVEA | N | Check on Fil, take pictures | 18:01 |
| 18:00 | CDS | Fil | LVEA | N | Measuring table cable lengths | 18:04 |
| 18:04 | EPO | Camilla, Leo +1 | OSB Roof | N | Tour | 18:14 |
| 18:08 | PEM | Robert, Sam | LVEA | N | Mounting accelerometer | 18:41 |
| 18:24 | ISC | Keita | LVEA | N | Grabbing parts | 18:36 |
| 18:34 | TCS | Camilla, TJ | LVEA | N | Moving laser into LVEA | 18:47 |
| 18:42 | VAC | Gerardo | LVEA | N | Turning off pumps | 19:15 |
| 18:53 | SAF | Camilla | LVEA | YES | Transition to HAZARD; sweep | 19:23 |
| 19:33 | PEM | Robert | LVEA | - | Removing temporary tape | 19:41 |
| 19:33 | SAF | Laser HAZARD | LVEA | YES | LVEA is Laser HAZARD | Ongoing |
| 20:12 | PEM | Gerardo | LVEA | - | Powering off pumps | 20:21 |
| 20:22 | VAC | Janos, Travis, Anna | MX | N | Pump installation | 22:09 |
| 21:32 | SEI | Tony, Rick | PCal Lab | Local | SPI characterization | Ongoing |