TITLE:   GCN CIRCULAR
NUMBER:  43176
SUBJECT: Fermi Gamma-ray Burst Monitor trigger 788028118/251221696 is not a GRB
DATE:    25/12/21 22:01:00 GMT
FROM:    Bagrat Mailyan at Florida Tech <mbagrat@gmail.com>

B. Mailyan (Florida Tech) reports on behalf of the Fermi Gamma-ray Burst Monitor Team:

"The Fermi Gamma-ray Burst Monitor (GBM) trigger 788028118/251221696 at 16:41:53.69 UT
on 21 December 2025, tentatively classified as a GRB, is in fact not due
to a GRB. This trigger is likely due to particle activity."