TITLE: GCN CIRCULAR NUMBER: 18975 SUBJECT: Fermi GBM trigger 475675010/160128498 is not a GRB DATE: 16/02/02 15:54:30 GMT FROM: Hoi-Fung Yu at MPE H.-F. Yu (MPE) reports on behalf of the Fermi GBM Team: "The Fermi Gamma-ray Burst Monitor (GBM) trigger 475675010/160128498 at 11:56:46.28 UT on 28 January 2016, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is due to solar activity."