TITLE: GCN CIRCULAR NUMBER: 33150 SUBJECT: Fermi Gamma-ray Burst Monitor trigger 694043024/221229905 is not a GRB DATE: 23/01/04 20:44:36 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 694043024/221229905 at 21:43:39 UT on 29 December 2022, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is likely due to particle activity."