TITLE: 10/10 Eve Shift: 2330-0500 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Commissioning
INCOMING OPERATOR: None
SHIFT SUMMARY:
IFO is in at DARM_TO_RF
Elenna and Louis worked hard to get past IDLE_ALS, whioch is the state right before we lose lock. The current hypothesis is that the PR_Gain ramp up is wrong so they've been measuring and then stepping up the gain (more negative) slowly to see what is enough.
It turned out that the arm alignment was bad, and we successfully got past DHARD_WFS. Though the problem is still happening so Elenna is troubleshooting.
We've relocked fully automatically with DRMI over 10 times.
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 15:12 | FAC | Chris | MX, MY | n | FAMIS tasks | 16:00 |
| 16:11 | ISC | Sheila | LVEA | YES | Setting up measurement | 16:23 |
| 17:15 | EE | Marc | CER | YES | Checking signal for Richard | 17:22 |
| 22:24 | TCS | Sophie | CHETALab | y(local) | Aligning laser | 00:14 |
| 23:15 | ISC | Keita, Alex | LVEA | Y | Changing OMC measurement settings | 23:23 |