TITLE: GCN CIRCULAR NUMBER: 14694 SUBJECT: GRB 130518B, Swift-BAT refined analysis DATE: 13/05/22 14:21:30 GMT FROM: Hans Krimm at NASA-GSFC H. A. Krimm (GSFC/USRA) and J. R. Cummings (GSFC/UMBC) for the Swift-BAT team: We report further analysis of BAT GRB 130518B (trigger #556105) (Cummings, GCN Circ. 14682). The time-averaged spectrum covering 10 seconds of event data (which includes most of the burst) is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.39 +- 0.14. The fluence in the 15-150 keV band is 8.0 x 10^-7 erg/cm2. All the quoted errors are at the 90% confidence level.