TITLE: GCN CIRCULAR NUMBER: 34307 SUBJECT: LIGO/Virgo/KAGRA S230731an: not observable by Fermi-GBM DATE: 23/08/01 02:03:51 GMT FROM: Sarah Dalessi at UAH sd0104@uah.edu

S. Dalessi (UAH) reports on behalf of the Fermi-GBM Team:

At the time of LVK S230731an, Fermi was passing through the South Atlantic Anomaly from 12.6 minutes prior to 5.7 minutes after the trigger time; therefore the GBM detectors were disabled.

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