Reports until 08:42, Saturday 08 July 2017
H1 General
edmond.merilh@LIGO.ORG - posted 08:42, Saturday 08 July 2017 (37381)
Shift Transition - Day

TITLE: 07/08 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Earthquake
OUTGOING OPERATOR: Jeff
CURRENT ENVIRONMENT:
    Wind: 5mph Gusts, 3mph 5min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.05 μm/s
QUICK SUMMARY:

H1 violin modes still damping. Spoke with Jeff and Keita about target parameter of ~55-60Mpc to consider going back into Observation mode. There are still a couple of funny bumps in DARM. A cluster of them just below fundamental violin mode and another that seems to be diminishing just below f2 violins. F2 violins are still peaking at, and slightly above, 10e-15. I'm not sure at what point effective damping on these can be done. I will continue to monitor.

 

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