TITLE: GCN CIRCULAR NUMBER: 18034 SUBJECT: GRB 150716A: Swift-BAT refined analysis DATE: 15/07/17 22:22:06 GMT FROM: Tilan Ukwatta at LANL A. Y. Lien (GSFC/UMBC), S. D. Barthelmy (GSFC), J. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), D. Kocevski (NASA/GSFC/ORAU), H. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), T. N. Ukwatta (LANL) (i.e. the Swift-BAT team): Using the data set from T-61 to T+242 sec from the recent telemetry downlink, we report further analysis of BAT GRB 150716A (trigger #649157) (Kocevski, et al., GCN Circ. 18027). The BAT ground-calculated position is RA, Dec = 278.481, -12.978 deg which is RA(J2000) = 18h 33m 55.4s Dec(J2000) = -12d 58' 40.8" with an uncertainty of 1.1 arcmin, (radius, sys+stat, 90% containment). The partial coding was 91%. BAT light curve shows a single peak starting around T+5 sec and ending around T+60 sec. T90 (15-350 keV) is 44 +- 6 sec (estimated error including systematics). The time-averaged spectrum from T-4.19 to T+50.02 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.54 +- 0.10. The fluence in the 15-150 keV band is 1.5 +- 0.1 x 10^-06 erg/cm2. The 1-sec peak photon flux measured from T+9.69 sec in the 15-150 keV band is 0.8 +- 0.1 ph/cm2/sec. All the quoted errors are at the 90% confidence level. The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/649157/BA/