TITLE: GCN CIRCULAR NUMBER: 24968 SUBJECT: Fermi Gamma-ray Burst Monitor trigger 190626526/583245413 is not a GRB DATE: 19/07/02 18:13:27 GMT FROM: Cori Fletcher at USRA C. Fletcher (USRA) reports on behalf of the Fermi Gamma-ray Burst Monitor Team: “The Fermi Gamma-ray Burst Monitor (GBM) trigger 190626526/583245413 at 12:36:48.94 UT on 26 June 2019, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is due to an unknown source." For Fermi GBM data and info, please visit the official Fermi GBM Support Page: https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/