TITLE: GCN CIRCULAR NUMBER: 18248 SUBJECT: Fermi GBM trigger 150907763 is not a GRB DATE: 15/09/07 21:11:44 GMT FROM: Peter Veres at UAH P. Veres reports on behalf of the Fermi GBM Team: "The Fermi Gamma-ray Burst Monitor (GBM) trigger 463342761/150907763 at 18:19:17.07 UT on the 7 September 2015, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is due to a particle event."