[vsnet-grb-info 2469] Swift-BAT trigger 165579 is not a GRB

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4306
SUBJECT: Swift-BAT trigger 165579 is not a GRB
DATE:    05/11/27 17:45:41 GMT
FROM:    Scott Barthelmy at NASA/GSFC  <Scott at lheamail.gsfc.nasa.gov>

S. Barthelmy (GSFC) and C. Markwardt (GSFC/UMD)
on behalf of the Swift-BAT team:

The Swift-BAT trigger (trigger=165579) at 14:06:43 UT on 27 Nov 2005
(reported in O'Brien et al GCN 4305) is not due to a GRB or
any other astrophysical source.  The BAT mask-tagged lightcurve
shows no significant emission on time scales ranging from 100 microsec
to several seconds.