TITLE: GCN CIRCULAR NUMBER: 17482 SUBJECT: Fermi GBM trigger 150220229 is not a GRB DATE: 15/02/20 10:12:43 GMT FROM: Oliver Roberts at UCD/Fermi O.J. Roberts (UCD) reports on behalf of the Fermi GBM Team: "The Fermi Gamma-ray Burst Monitor (GBM) trigger 446102993/150220229 at 05:29:50.59 UT on the 20th of February 2014, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is due to local particles."