TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4117
SUBJECT: Swift-BAT trigger 160640 is not a real GRB
DATE:    05/10/21 15:31:17 GMT
FROM:    Scott Barthelmy at NASA/GSFC  <Scott@lheamail.gsfc.nasa.gov>

A. Retter (PSU), L. Barbier (GSFC), S. Barthelmy (GSFC),
N. Gehrels (GSFC), J. Kennea (PSU), C. Markwardt (GSFC/UMD),
K. Page (U Leicester), D. Palmer (LANL), T. Sakamoto (GSFC)
on behalf of the Swift team:

At 14:45:03 UT, Swift-BAT triggered (trigger=160640) on a hot pixel
combined with a chance fluctuation in the image domain.
This trigger is not a real GRB or any astrophysical source.