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KAGRA information
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1) Until around 23:00 on 18th April, IFO was unstable because of 

 a) violent ocean,  b) slight worse alignment maybe.

After SAL alignment around 23:00, IFO became stable, and ocean became silent hour by hour.




shift summary

18th

day

http://klog.icrr.u-tokyo.ac.jp/osl/?r=14233

night

http://klog.icrr.u-tokyo.ac.jp/osl/?r=14237

midnight

http://klog.icrr.u-tokyo.ac.jp/osl/?r=14239




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General information from KAGRA office
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nothing