TITLE: GCN CIRCULAR NUMBER: 21362 SUBJECT: Fermi GBM trigger 522470841/170723116 is not a GRB DATE: 17/07/23 17:52:25 GMT FROM: Oliver J Roberts at USRA/NASA O.J. Roberts (USRA) reports on behalf of the Fermi GBM Team: "The Fermi Gamma-ray Burst Monitor (GBM) trigger 522470841/170723116 at 02:47:16.57 UT on 23 July 2017, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is due to local particles."