Skip to main content
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 31932

Fermi GBM trigger 672128054/220420260 is not a GRB
2022-04-21T14:47:00Z (2 years ago)
Elisabetta Bissaldi at INFN,Bari <>
E. Bissaldi (Politecnico and INFN Bari)
reports on behalf of the Fermi GBM Team:

"The Fermi Gamma-ray Burst Monitor (GBM) trigger 672128054/220420260
at 06:14:09.50 UT on 20 April 2022, tentatively classified as a GRB,
is in fact not due to a GRB. This trigger is likely due to a TGF."
Looking for U.S. government information and services? Visit