camilla.compton@LIGO.ORG - posted 00:07, Thursday 04 May 2023 (69305)
OPS Evening Shift Summary
TITLE: 05/04 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Locking
SHIFT SUMMARY: Spent most of the eveving with the IFO locked, did some OMC alignment and Louis did Calibration work. Lost lock from CSOFT ring up and IFO is currently locking at AQUIRE_PRMI
LOG: Louis may do more calibration if we get back to NLN.
Lock#1 by Corey (alog69281) to get back to Observing:
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SUS
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Accepted filters changes for ETMY mode 16. Looked like this mode hasn't been damped for 20+ days and copied the other undamped modes filters. sdf screenshot
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Accepted filters changes for ITMX mode 19. Turned on FM3 (+30deg) to be total of +270deg curemt gain 0. sdf screenshot
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CAL
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On is explained in Jeff's alog 47429 to mean that HWINJ is going to end X
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Lockloss at 06:02UTC, 6h45m into lock from a CSOFT Pitch ~0.45Hz ring up while calibration measurements were running, see attached control signal. Tagging ISC. The camera servos also saw this and were moving away from zero, plot attached.
Elenna found this afternoon's 21:41 lockloss was the same, alog 69296, and raised the DSOFT, CSOFT gains. What has changed? SRCL offset changed from -165 to -200 at ~21:00 UTC this afternoon (69289).
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 22:30 | PEM | Fil | near CER | n | PEM coil cable check | 00:00? |
| 22:30 | EE | Marc | cer | n | power supply inventory | 23:15 |
| 23:13 | CAL | Jeff | CR | N | Calibration | 01:13 |
| 01:16 | COMM | Vicky, Camilla | CR | N | OMC Offsets alog 69307 | 04:00 |
| 04:30 | CAL | Louis | Remote | N | Calibration Suite | 06:05 |
Images attached to this report
