TITLE: GCN CIRCULAR NUMBER: 12076 SUBJECT: Fermi Gamma-ray Burst Monitor trigger 110621949 is not a GRB DATE: 11/06/22 15:01:17 GMT FROM: Adam Goldstein at Fermi-GBM/UAH A. Goldstein (UAH) reports on behalf of the Fermi Gamma-ray Burst Monitor Team: “The Fermi Gamma-ray Burst Monitor (GBM) trigger 110621949 at 22:46:42 UT on 21 June 2011, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is due to a local particle event."