TITLE: GCN CIRCULAR NUMBER: 20805 SUBJECT: Fermi GBM trigger 510207699/170303182 is not a GRB DATE: 17/03/03 13:13:51 GMT FROM: Andreas von Kienlin at MPE A. von Kienlin (MPE) reports on behalf of the Fermi GBM Team: "The Fermi Gamma-ray Burst Monitor (GBM) trigger 510207699/170303182 at 04:21:34.33 on 03 March 2017, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is due to local particles."