Reports until 16:39, Friday 25 November 2016
H1 General
edmond.merilh@LIGO.ORG - posted 16:39, Friday 25 November 2016 (31842)
Shift Summary - Day
TITLE: 11/26 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: TJ
SHIFT SUMMARY:
Short lock stretches. Re-locking has been relatively easy with a few random dropouts along the way.
LOG:

20:40  LockLoss OMC PD saturation. Robert is possibly the cause, doing low frequency acoustic injections, and suggests that maybe the ITMY oplev is sensitive to the freq range he's using. Maybe we'll try turning the OpLev damping off for next lock.

21:14 Lockloss at SWITCH_TO_QPDS

21:19 Wind has been picking up a little and blowing moderatly from the NE. X arm has been shaky. I switched ISI config to WINDY_MOD_WIND_BRSX and that seems to be holding rock steady for now, once all the nodes arrived. TRX and TRY don't look 'raggedy' any more.

21:30 Lockloss at DRMI_ON_POP

22:02 NLN. Beam Diverters closed 68Mpc. OpLev damping off experiment proved to be not good to try.

22:08 Robert out to LVEA to do PEM injections

22:07 PI mode 28 ringing up. Changed from -60ø to -100ø

22:17 PI mode 27 ringing up. Changed to 120ø

22:21 GRB alert. PEM injections happening at LHO. Not in Observing .

22:39 Lockloss. HAM6 ISI WD trip. May have been my fault playing with bp filters for roll mode while trying to damp.

23:19 back to NLN. Diverters closed 75Mpc

23:31 Manual overfill of CP3

25:51 Lockloss. HAM6 ISI WD trip

23:50 Tour(s) in e control room

00:35 Last tour out of control room. Handing off to TJ.