TITLE: GCN CIRCULAR NUMBER: 16038 SUBJECT: Fermi Gamma-ray Burst Monitor trigger 417486540 / 140326020 is not a GRB DATE: 14/03/26 16:21:35 GMT FROM: Peter Jenke at MSFC P. Jenke (UAH), reports on behalf of the Fermi Gamma-ray Burst Monitor Team: “The Fermi Gamma-ray Burst Monitor (GBM) trigger 417486540 / 140326020 at 00:28:57.95 UT on 26 March 2013, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is due to a solar flare."