Reports until 08:43, Tuesday 10 December 2019
H1 General
edmond.merilh@LIGO.ORG - posted 08:43, Tuesday 10 December 2019 - last comment - 16:09, Tuesday 10 December 2019(53788)
113:10:03 - New H1 Lock Duration Record!

At 16:21:18 UTC, H1 was intentionally unlocked for necessary maintenance. How long would it have lasted? We may never know! We held off to make an even 113 hrs and then a little more while waiting for those with more invasive work to prepare to start which resulted in a few seconds mor than 10 minutes. Way To GO!

 

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brian.lantz@LIGO.ORG - 11:36, Tuesday 10 December 2019 (53806)

Congratulations! That was well done.

In a nod to the saying "success has many parents", I made a quick log about riding through the earthquakes on Dec 6 so we can point to that as one of the many things done to improve the robust performance of the detectors.

jameson.rollins@LIGO.ORG - 16:09, Tuesday 10 December 2019 (53817)

Truly awesome!  But why was lock intentionally broken?  Was that really necessary?  You should have just let it go while you went on with maintenance activities.  Maybe it could have gone much longer!

In general, I see almost no reason why lock should ever be intentionally broken.  If a maintenance activity breaks lock so be it, no probblem, more information on the various things that can cause lock loss.  But if it doesn't, then that's great and we have even longer lock stretches.