TITLE: 11/13 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC

STATE of H1: Lock Acquisition

INCOMING OPERATOR: Travis

SHIFT SUMMARY: Daniel was here working since IMC was able to stay locked. Once the 6.5M earthquake settled we began an initial alignment.

 

[Initial Alignment] Had issue aligning ALSX. Part of the problem was PR3 mirror was misaligned so watching the green arm build-up alone wasn't good enough. Instead watch camera beam position. Daniel also mentioned that the camera that DOF3 read off looks like "shit". So there's that. ALIGN_INPUT breaks IMC everytime it tries to grab the lock. Daniel didn't think WFS coming on was the problem, it had "too much of something". Anyway, since TR_X was able to flash at 1 we moved on and pretended that everything was good. MICH_DARK_LOCKED will kick beam splitter everytime so I took ALIGN_IFO to DOWN and align BS to minimize the light on the AS port, then request MICH_DARK_LOCKED again. SRC_ALIGN went fine.

 

[Lock Acquisition]

PRMI locked fine, but DRMI had trouble. SRM "ALIGNED" state wasn't really aligned. It stuck at some bad pitch and yaw values and thought that it was aligned (knew this because during the PRMI to DRMI transition I didn't see the beam from SRM come flying). I put SRM back to where it was before the earthquake. SRC trigger came on and I was able to move on. ISC_LOCK guardian crashed once and that took down the lock-in-progress. When I relocked there was no problem (except the lockloss at Coil_Drivers).

 

 

LOG:

00:45 Ran Stefan's wfsreliefpast script (the version found in his home dir). The script only touches the OPTICALIGN slide bar (as suggested by "wfsrelief". Duh). Aligning IM1-4 optics by hand.

1:10 Another 6.2M earthquake in New Zealand. Paused initial alignment attempt as seismic signal became apparent on the FOM.

05:57 OAF crashed

06:20 Initial alignment done. Began locking

07:08 OAF crashed

04:14 ISC_LOCK Guaridan crashed. Restarted the node, and it went straight to INIT. Took down the IFO.

07:35 OAF crashed

07:51 Lockloss at Coil_Drivers. It could have been that I didn't wait for things to settle down enough. Violin modes were quite high but nothing was ringing up. There's also another earthquake peaking on the seismic FOM (read 0.2 um/s).