[vsnet-grb-info 17992] Swift-BAT trigger 686845 was due to noise near a known source

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  19440
SUBJECT: Swift-BAT trigger 686845 was due to noise near a known source
DATE:    16/05/19 19:59:48 GMT
FROM:    Scott Barthelmy at NASA/GSFC  <scott at lheamail.gsfc.nasa.gov>

S. D. Barthelmy (GSFC) on behalf of the Swift-BAT team:
 
Using the full data set from T-239 to T+303 sec from recent telemetry downlinks,
we report that trigger #686845 was due to a noise fluctuation in the image domain
that was located close to a known source (XTE J2123-058).  Ground analysis shows
the significance has dropped to 2.5 sigma.