Skip to main content
Due to the lapse in federal government funding, NASA is not updating this website. See the Operations FAQ for GCN impacts.
New! Super-Kamiokande JSON Notices and Schema v4.5.0. See news and announcements

GCN Circular 42296

Subject
Fermi Gamma-ray Burst Monitor trigger 782237334/251015673 is not a GRB
Date
2025-10-15T17:53:14Z (6 days ago)
From
Suman Bala at USRA <sumanbala2210@gmail.com>
Via
Web form
S. Bala (USRA) reports on behalf of the Fermi Gamma-ray Burst Monitor Team:

"The Fermi Gamma-ray Burst Monitor (GBM) trigger 782237334/251015673 at 16:08:49.43 UT
on 15 October 2025, tentatively classified as a GRB, is in fact not due
to a GRB. This trigger is likely due to distant particles."
Questions or comments?
Contact GCN directly.
Have you found a bug in GCN?
Open an issue.
Want to contribute code to GCN?
Get involved on GitHub.

gcn.nasa.gov

A service of the Astrophysics Science Division at NASA Goddard Space Flight Center

Looking for U.S. government information and services? Visit USA.gov