thomas.shaffer@LIGO.ORG - posted 16:18, Thursday 20 February 2025 (82934)
Ops Day Shift End
TITLE: 02/21 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 156Mpc
INCOMING OPERATOR: Ibrahim
SHIFT SUMMARY: Lock loss at the start of the shift again, this one caused but , followed by a commissioning period and a calibration measurement. ITMY modes 5&6 rang up slowly overnight and continue to be an issue to damp (82940). As of right now, I'm not sure we've found a setting that is actually damping these modes. We've been locked for 6.5 hours, observing for 2.5 of those.
LOG:
- 2004 Observing
- 2129-2201 Out of observing to run calibration measurement
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 19:34 | SAF | Laser Haz | LVEA | YES | LVEA is laser HAZARD!!! | 06:13 |
| 17:55 | FAC | Tyler | MY | n | Fire panel check | 18:55 |
| 17:56 | PEM | Robert | LVEA | yes | Turn on amps | 19:22 |
| 18:15 | ISC | Sheila, Mayank, Matt | LVEA | yes | ISCT table work with POP | 18:43 |
| 18:28 | FAC | Kim | MY, MX | n | Tech clean | 19:31 |