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Reports until 16:54, Sunday 30 August 2015
H1 General
nutsinee.kijbunchoo@LIGO.ORG - posted 16:54, Sunday 30 August 2015 - last comment - 17:37, Sunday 30 August 2015(21026)
Day Ops Summary

(All time in UTC)

15:00 Take over from TJ. IFO not locked.

15:32 DRMI wouldn't lock after 10 mins. I was about to do the PRMI when I started seeing AS90 flashing. I gave it a few more minutes and it managed to lock.

          Lost lock at REDUCE_CARM_OFFSET soon after. Looks like ETMX was saturating. Wind speed ~20 mph.

15:45 Lockloss again at REDUCE_CARM_OFFSET. Turning ISI BSC WIndy blend filters on for BSC1,2,3.

18:23 Lockloss. Power outage. Guardian couldn't turn the ETMX ESD back on. We called Richard for help. See alog21030.

21:22 Switched the Windy blends off.

22:50 Begins the initial alignment after trouble relocking.

23:47 We're running into an issue with MICH_DARK_LOCKED. The beam would diverge away. I've tried setting the ALIGN_IFO to DOWN and waited a little bit before trying again. Didn't work. Sheila is working on it.

Comments related to this report
sheila.dwyer@LIGO.ORG - 17:37, Sunday 30 August 2015 (21034)

We looked into two of the locklosses that we had durring high winds.  (screen shots attached).  In both cases PRM was saturating or close to saturating before the lockloss.  Evan has increased the PRM and SRM offloading gains by a factor of 2.  

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