TITLE: 06/27 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 150Mpc
INCOMING OPERATOR: Tony
SHIFT SUMMARY: Currently Observing and have been Locked for 21 minutes. Lots of issues with ALSX PLL today (78703), as a continuation/extension of the problems we have been having with ALSX the past few days. After troubleshooting and multiple hours down after the 17:08 lockloss, we seemed to be clear of the PLL unlocking issue after I noticed that the PLL had managed to stay locked for 25 minutes, and then relocking went just like normal.
LOG:
14:30 Detector Observing at 155Mpc and has been Locked for almost 5 hours
15:32 Out of Observing for calibration measurements (78699) and commissioning
15:39 bb done
16:01 Simulines done
16:03 Lockloss right at beginning of commissioning
16:04 Started an initial alignment
- had to touch up ALSY because increase flashes couldn't catch it
16:41 Initial alignment done, going to sit in DOWN for commissioning test
17:08 Starting relocking
- Lockloss from LOCKING_ARMS_GREEN x2
- earthquake starts rolling through
- Lockloss from ACQUIRE_PRMI
- Held in GREEN_ARMS_MANUAL to check for issues with ALSX PLL
- Lockloss from FIND_IR x3
18:06 I started another initial alignment, skipping over green GREEN_ARMS_MANUAL
18:19 Initial alignment done, relocking
- CHECK_CRYSTAL_FREQUENCY for ALSX
- lockloss from LOCKING_ALS
- CHECK_CRYSTAL_FREQUENCY for ALSX
- Lockloss from FIND_IR x 2
- Sitting in GREEN_ARMS_MANUAL due to ALSX PLL unable to stay locked, even when ALSX is in the UNLOCKED state
20:03 Trying relocking after I saw that the last PLL error was from 25 minutes ago
- Everything worked perfectly
20:45 NOMINAL_LOW_NOISE
20:48 Observing
21:45 Lockloss
21:48 Initial alignment
22:09 IA done, relocking
23:01 NOMINAL_LOW_NOISE
23:04 Observing
Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
---|---|---|---|---|---|---|
14:55 | PCAL | Rick | PCAL Lab | y(local) | Grab stuff for LLO | 15:07 |
15:41 | FAC | Karen | WS/FirePump | n | Tech clean | 17:03 |
15:42 | SAF | Camilla, Iain | LVEA | n | Transitioning to laser hazard | 15:56 |
16:08 | SAF | LVEA | LVEA | YES | LVEA IS LASER HAZARD | 10:08 |
16:46 | PEM | Robert | LVEA | YES | Viewport scattering commissioning | 20:24 |
16:54 | ISC | Jenni | CR | n | Commissioning test | 17:52 |
16:58 | SQZ | Kar Meng | Optics Lab | y(local) | Working on SHG | 19:11 |
17:03 | FAC | Karen | VacPrep | n | Tech clean | 17:13 |
17:58 | PCAL | Francisco, Rick | PCAL Lab | y(local) | Lab upgrades | 21:00 |
18:11 | FIT | Jenni, Camilla, Isaiah | MY | n | Running really slow | 18:51 |
21:12 | SQZ | Kar Meng, Terry | Optics Lab | y(local) | SHG (Terry out 21:28) | ongoing |
21:16 | SAF | Richard, Fil | XARM | n | Looking for exposed ALS cable | 21:00 |
21:16 | EE | Fil | MY | n | Dropping off parts | 21:50 |
21:51 | PCAL | Francisco | PCAL Lab | y(local) | Upgrading lab | 22:30 |
21:57 | VAC | Janos | CER | n | Putting things away | 22:27 |