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Reports until 19:01, Thursday 31 October 2019
H1 SUS (Lockloss, SUS)
rahul.kumar@LIGO.ORG - posted 19:01, Thursday 31 October 2019 (52845)
Violin mode damping

Cheryl, Jenne, Rahul

Given below are the list of modes which were rung up. We tried damping them over the course of few lock attempts,

Lock attempt 1 (UTC 20.37): ETMY 1 (did not like the applied +- 0.1 gain; nominal is +0.1), ETMY 4, ITMY 14 (applied gain +200, nominal is +500)

Lock attempt 2 (UTC 21.38): ETMY 1 , ITMX 12, ITMY 14, ETMX 6, ETMX 3, ETMX 4

Lock attempt 3 (UTC 22.01): ETMY 15, ETMY 6, ITMX 13, ETMY 1 (phase changed from +60 to zero), ETMY 4 (applied some GAIN), ITMX 12, ITMY 11, ITMY 14,

Lock attempt 4 (UTC 23.00): ETMY 1, ITMX 13, ETMY 6,

Lock attempt 6 (UTC 01.16): ETMY 1, ETMY 6, ITMX 13, ITMY 15 - DAMPING_ON_DC working fine for now.

Displaying report 1-1 of 1.