TITLE: GCN CIRCULAR NUMBER: 18208 SUBJECT: Fermi GBM trigger 150829183 is not a GRB DATE: 15/08/30 13:56:27 GMT FROM: Hoi-Fung Yu at MPE H.-F. Yu reports on behalf of the Fermi GBM Team: "The Fermi Gamma-ray Burst Monitor (GBM) trigger 462515035/150829183 at 04:23:51.76 UT on the 29 August 2015, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is due to a particle event."