ryan.crouch@LIGO.ORG - posted 16:31, Thursday 31 July 2025 (86116)
OPS Thursday day shift summary
TITLE: 07/31 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 151Mpc
INCOMING OPERATOR: Ryan S
SHIFT SUMMARY: Two locklosses, Ryan will try to get the calibration measurement later this evening. We've been locked for just under 3 hours.
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 15:46 | SPI | Jeff | Optics lab | N | SPI inventory | 17:24 |
| 16:25 | EE | Richard, Fil | LVEA | N | Checks by HAM1 | 16:34 |
| 17:17 | SQZ | Camilla | CR | N | SQZ HOM measurement | 18:02 |
| 17:31 | FAC | Nellie | Optics lab | N | Tech clean | 17:59 |
| 18:27 | SPI | Jeff | Optics lab | N | Quick checks | 18:31 |
| 20:22 | VAC | Gerardo | FCES | N | VAC checks | 21:24 |
| 21:20 | ISC | Rahul, Jennie | Optics lab | LOCAL | ISS array | 21:41 |
- 15:13 UTC lockloss during Simulines
- 16:12 UTC Initial Alignment
- DRMI took over 20 minutes and a round of PRMI to lock
- 19:31 UTC lockloss
- 20:42 UTC Observing
- Erik restarted the TP_MON IOC after I noticed it had been frozen since Jun 16th