Reports until 12:29, Tuesday 12 June 2018
H1 SUS
jenne.driggers@LIGO.ORG - posted 12:29, Tuesday 12 June 2018 - last comment - 14:03, Tuesday 12 June 2018(42478)
BS oplev falling off diode

TJ noted that the beam splitter was oscillating wildly.  Glancing at the screen, it looks like the move that we did yesterday to align MICH (alog 42467) moved the BS mostly off of its optical lever PD.  So, with a small nudge (maybe a recent EQ? there's a small close one that showed up in our seismic blrms) we've fallen enough off the PD that the oplev loops started going crazy. 

I have the outputs of the BS oplev turned off for now.  We need to re-center the BS oplev next time Jason has a moment to spare.

Comments related to this report
jeffrey.kissel@LIGO.ORG - 12:47, Tuesday 12 June 2018 (42479)AOS
Opened FRS Ticket 10866 and assigned to Jason.
jason.oberling@LIGO.ORG - 14:03, Tuesday 12 June 2018 (42482)AOS

The BS OpLev has been re-centered.