TITLE: GCN CIRCULAR NUMBER: 40623 SUBJECT: Fermi Gamma-ray Burst Monitor trigger 770675211/250603852 is not a GRB DATE: 25/06/03 21:37:43 GMT FROM: Lorenzo Scotton at UAH lscottongcn@outlook.com

L. Scotton (UAH) reports on behalf of the Fermi Gamma-ray Burst Monitor Team:

"The Fermi Gamma-ray Burst Monitor (GBM) trigger 770675211/250603852 at 20:26:46.25 UT on 03 June 2025, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is likely due to local particles."

View this GCN Circular online at https://gcn.nasa.gov/circulars/40623. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...