TITLE: GCN CIRCULAR NUMBER: 10325 SUBJECT: GRB 100115A detected in ground analysis of Swift-BAT data DATE: 10/01/15 22:11:11 GMT FROM: Jay R. Cummings at NASA/GSFC/Swift J. R. Cummings (NASA/GSFC/UMBC), N. Gehrels (NASA/GSFC), H. A. Krimm (NASA/GSFC/USRA), D. M. Palmer (LANL) report on behalf of the Swift Team: At 11:15:19UT, BAT detected GRB 100115A during a preplanned Swift slew maneuver. A source was found in ground analysis of event data collected for the BAT Slew Survey at RA, Dec 3.333, -0.817, which is RA (J2000) 00 13 19.9 Dec (J2000) -00 49 01 with an estimated 90% containment uncertainty of 4 arcmin radius. The burst was a single FRED pulse with a T90 of about 3 seconds. There was no detectable flux above 100 keV. A Swift TOO has been approved.