GCN Circular 21028
Subject
Fermi GBM trigger 514436208/170421123 is not a GRB
Date
2017-04-21T08:49:42Z (7 years ago)
From
Andreas von Kienlin at MPE <azk@mpe.mpg.de>
A. von Kienlin (MPE) reports on behalf of the Fermi GBM Team:
"The Fermi Gamma-ray Burst Monitor (GBM) trigger 514436208/170421123
at 02:56:43.38 UT on 21 April 2017, tentatively classified as a GRB,
is in fact not due to a GRB. This trigger is due to local particles."