GCN Circular 7987
C. B. Markwardt (CRESST/UMD/GSFC), J. K. Cannizzo (NASA/UMBC), J. R. Cummings (NASA/UMBC), C. Gronwall (PSU), C. Guidorzi (INAF-OAB) report on behalf of the Swift team: On 2008-07-20 at 00:23:41 UT, Swift BAT detected an excess, and reported as a possible GRB (Trigger #317393; Cannizzo et al., GCN Circ. #7986). After refined BAT ground analysis, the excess is no longer significant. Furthermore, no uncatalogged sources were detected by Swift XRT or UVOT. Therefore, we conclude that this trigger is not a GRB.