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Advanced LIGO seems to operate only intermittently. Is there a schedule for at what times it will be able to register new gravity waves? Even if no formal schedule is available, what main factors determine the scheduling?

I suppose VIRGO in Italy, to get started in 2016, will operate mostly simultaneously with aLIGO. Or would its design require another type of schedule?

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There is no set date due to the complexity of the machines and their upgrades but this is the closest you will get to an answer:

O1 is planned to last for four months, closing mid-January 2016. Then work will start on upgrading the instruments for our second observing run, which is called O2; those upgrades will be informed by what we have learned about the instruments during O1. O2 will start in 2016 and last around six months. Hopefully, around this time Advanced LIGO will be joined by Advanced Virgo.

They have no fixed date for the second observing run (O2) but it should be up an running later this year (my guess would be June-July time).

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  • $\begingroup$ Do you know if any other signals were detected during O1? $\endgroup$ Mar 1, 2016 at 2:32
  • $\begingroup$ @Jack R. Woods I do know what happened during O1 but unfortunately I cannot say as its still confidential under MoU embargo imposed by LIGO. $\endgroup$
    – Dean
    Mar 1, 2016 at 10:03
  • $\begingroup$ O2 has started on the 30th of November 2016 (aei.mpg.de/1980426/begino2) $\endgroup$ Dec 8, 2016 at 15:06
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    $\begingroup$ @AlexeyBobrick That's right, however O2 will take a short pause on the 23rd December for the Christmas period and will resume on the 3rd Janurary until sometime in May 2017. $\endgroup$
    – Dean
    Dec 8, 2016 at 16:08

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