aLIGO LHO Logbook

Reports until 02:07, Monday 28 November 2016

H1 General

cheryl.vorvick@LIGO.ORG - posted 02:07, Monday 28 November 2016 - last comment - 05:54, Monday 28 November 2016(31892)

Ops Owl Shift - transition and relocking

State of H1: NLN, running al2

Outgoing Ops: TJ

Activities:

a lock that broke in Increase Power
small tweak to alignment of PR3 and PRM
damped bounce and violins in DC Readout
went from Noise Tunings to NLN manually
running a2l since noise in DARM is higher at 20Hz...
however, useism is steadily marching upwardand all stations are about 0.5um/s
10:05UTC, a2l done
10:06UTC, range is 74Mpc, went to Observe
10:10UTC, noticed ASAIR and REFL beam diverters were not closed, out of Observe
closed ASAIR and REFL beam diverters
10:11UTC, back in Observe

Comments related to this report

cheryl.vorvick@LIGO.ORG - 02:17, Monday 28 November 2016 (31893)

10:13-15UTC, PI mode 28 range up. I changed the phase during this time, H1 still in Observe

cheryl.vorvick@LIGO.ORG - 02:25, Monday 28 November 2016 (31894)

during the minute of 10:24UTC I damped PI mode 28, H1 in Observe

cheryl.vorvick@LIGO.ORG - 03:05, Monday 28 November 2016 (31895)

11:02-11:04UTC, changed gain on PI mode 28, H1 in Observe

cheryl.vorvick@LIGO.ORG - 05:54, Monday 28 November 2016 (31896)

range dropped to 54Mpc
13:20UTC, out of Observe when LLO lost lock, to see what I could do
seems like some improvement
ran al2
13:49UTC. back in Observe