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GCN Circular 20320

Subject
Fermi GBM trigger 503982114/161221126 is not a GRB
Date
2016-12-21T13:36:16Z (8 years ago)
From
Oliver Roberts at UCD/Fermi <oliver.roberts@ucd.ie>
O.J. Roberts (UCD) reports on behalf of the Fermi GBM Team:

"The Fermi Gamma-ray Burst Monitor (GBM) trigger
503982114/161221126 at 03:01:50.55 UT on 21 December 2016,
tentatively classified as a GRB, is in fact not due to a GRB.
This trigger is due to local particles."
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