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Reports until 08:03, Friday 25 November 2016
H1 General
nutsinee.kijbunchoo@LIGO.ORG - posted 08:03, Friday 25 November 2016 (31835)
Ops Owl Shift Summary

TITLE: 11/25 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC

STATE of H1: Down due to earthquakes

INCOMING OPERATOR: Ed

SHIFT SUMMARY: Anamaria left couple of suggestions of things that I can do to help improve the range. I was going to try for an hour but caused a lockloss in the process. Have been having trouble locking all my shift. There're only two ISI configurations I could try without using BRSX (which is still rung up). USEISM_NOBRSXY took me the furthest towards NLN (I was in NLN once with this configuration) but it seems unstable at ~37 mHz.

LOG:

9:22 Went to get food+cofee and came back to find PI mode 27 rung up pretty high. I was able to damp it.

14:53 Noticed an earthquake showing up on the FOM. USGS reported a 5.2M and 6.5M earthquake in Tajikistan. Terramon predicted the worst of it should arrive a little bit after 7am local time. I tried to switch ISI config to LARGE_EQ_NOBRSXY but lost lock in the process. Could switching the ISI state have caused the lockloss? The FOM reads about 0.8 um/s when I did the switch.

          About 20 mins later a verbal alarm warned me about the earthquake. For it to be useful I propose that the threshold is set lower (probably half way lower than the current threshold) so people have time to react accordingly.

15:05 GRB alert. Bad timing, Universe.

15:09 Kyle arrived, going into LVEA.

15:34 Kyle out

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