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Reports until 12:26, Tuesday 22 September 2026
H1 SUS
oli.patane@LIGO.ORG - posted 12:26, Tuesday 22 September 2026 (92011)
BBSS damping OFF times

Tom requested some time with the damping OFF for the BBSS

I did this in two segments. First segment is in the Sum Feedback configuration, and the second segment is in the Constant Current configuration. Since these times were taken during maintenance, the seismic configuration at the time was with seismic correction OFF.

BBSS DAMP OFF Times
- Sensor Correction OFF
- SEI in FULLY_ISOLATED

Sum Feedback ON
Damp OFF : 2026/09/22 17:52:00 - 18:27:00 UTC [1474134738 - 1474136838]

Sum Feedback OFF
Damp OFF : 2026/09/22 18:33:30 - 19:01:00 UTC [1474137198 - 1474138878]

After these were done, I turned BBSS M1 and M3->M2 damping back on and flipped the current switches on the satamp back to the Sum Feedback configuration.

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