TITLE:   GCN CIRCULAR
NUMBER:  3321
SUBJECT: Swift-BAT Trigger 115881 is not a real GRB
DATE:    05/04/30 17:58:00 GMT
FROM:    Scott Barthelmy at NASA/GSFC  <Scott@lheamail.gsfc.nasa.gov>

S. Barthelmy (GSFC), C. Markwardt (GSFC/UMD), D. Palmer (LANL), B. Zhang (UNLV)
on behalf of the Swift-BAT team:

The Swift-BAT triggered (trigger=115881, GCN Circ 3320) at 13:29:35 UT
is not due to a GRB.  The trigger occured on the rising edge of the SAA.
Ground analysis has confirmed the very low image-domain detection significance.
A visual inspection of the mask-tagged light curve also shows no
significant emission.