TITLE:   GCN CIRCULAR
NUMBER:  41137
SUBJECT: Swift-BAT trigger 1334535 is not a GRB
DATE:    25/07/22 14:22:25 GMT
FROM:    Mike Moss at NASA GSFC <mikejmoss3@gmail.com>

M. Moss (GSFC) on behalf of the Swift-BAT team:
 
The Swift-BAT trigger (trigger=1334535) at 00:14:02 UT on 18 July 2025 is not a GRB. All photons in the peak are simultaneous within the 100 us timing of the detector plane. This is indicative of a cosmic ray shower.