LIGO, We're now half-way through our 2 week engineering run. On 3 April, we should start the second part of our fourth observing run (O4b)
We have enjoyed a few stretches with Hanford, Livingston and Virgo observing together! Here's a plot of performance on Saturday
The plot shows the binary neutron star inspiral range: an average distance to which we could detect a standard binary of 1.4 solar mass components. More massive binaries could be seen to greater distance.
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