[vsnet-grb-info 19617] Fermi GBM trigger 522334209/170721535 is not a GRB

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  21361
SUBJECT: Fermi GBM trigger 522334209/170721535 is not a GRB   
DATE:    17/07/23 00:28:16 GMT
FROM:    Oliver J Roberts at USRA/NASA  <oliver.roberts at nasa.gov>

O.J. Roberts (USRA) reports on behalf of the Fermi GBM Team:

"The Fermi Gamma-ray Burst Monitor (GBM) trigger 522334209/170721535
at 12:50:04.518 UT on 21 July 2017, tentatively classified as a GRB,
is in fact not due to a GRB. This trigger is due to local particles."