TITLE: GCN CIRCULAR NUMBER: 17550 SUBJECT: Fermi GBM trigger 150307942 is not a GRB DATE: 15/03/07 23:43:33 GMT FROM: Eric Burns at U of Alabama E. Burns (UAH) reports on behalf of the Fermi GBM Team: "The Fermi Gamma-ray Burst Monitor (GBM) trigger 447460597/150307942 22:36:34.87 UT on the 7th of March 2015, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is due to a solar flare."