Updated sky localization. 90% 1,400 sq deg.

Updated three-dimensional volume localization. Distance around 3.8 Gpc.

Catching up with #GravitationalWave candidate #S251013x

If real, the source is probably a binary black hole (chirp mass ~22–88 solar masses)

False alarm rate 1 in 2.1 yr
GraceDB gracedb.ligo.org/superevents/...
GCN gcn.nasa.gov/circulars/42... gcn.nasa.gov/circulars/42...
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