TITLE: GCN CIRCULAR NUMBER: 12252 SUBJECT: Fermi Gamma-ray Burst Monitor trigger 110806.263 is not a GRB DATE: 11/08/06 18:20:19 GMT FROM: Sinead McGlynn at Excellence Cluster/TUM S. McGlynn reports on behalf of the Fermi Gamma-ray Burst Monitor Team: “The Fermi Gamma-ray Burst Monitor (GBM) trigger 110806.263 at 06:19:00.58 UT on 6 August 2011, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is due to particle activity."