TITLE: GCN CIRCULAR NUMBER: 12303 SUBJECT: Fermi GBM trigger 110823.518 is not a GRB DATE: 11/08/23 14:39:50 GMT FROM: Sinead McGlynn at Excellence Cluster/TUM S. McGlynn (TUM/MPE) reports on behalf of the Fermi Gamma-ray Burst Monitor Team: "The Fermi Gamma-ray Burst Monitor (GBM) trigger 335795147 (110823518) at 12:25:45.68 UT on 23 August 2011, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is due to local particle activity."