Skip to main content
New! Super-Kamiokande JSON Notices and Schema v4.5.0. See news and announcements

GCN Circular 42668

Subject
Fermi Gamma-ray Burst Monitor trigger 784717756/251113381 is not a GRB
Date
2025-11-13T14:29:46Z (2 days ago)
From
Elisabetta Bissaldi at Politecnico and INFN Bari <elisabetta.bissaldi@ba.infn.it>
Via
Web form
E. Bissaldi (Politecnico and INFN Bari) reports on behalf of the Fermi Gamma-ray Burst Monitor Team:

"The Fermi Gamma-ray Burst Monitor (GBM) trigger 784717756 / 251113381 at 09:09:11.19 UT
on 13 November 2025, tentatively classified as a GRB, is in fact not due
to a GRB. This trigger is likely due to a solar flare."
Looking for U.S. government information and services? Visit USA.gov