TITLE: GCN CIRCULAR NUMBER: 16539 SUBJECT: GRB 140706A: Swift-BAT refined analysis DATE: 14/07/07 21:30:48 GMT FROM: Takanori Sakamoto at AGU C. B. Markwardt (GSFC), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), A. Y. Lien (NASA/UMBC), F. E. Marshall (NASA/GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (MSU) (i.e. the Swift-BAT team): Using the data set from T-239 to T+963 sec from the recent telemetry downlink, we report further analysis of BAT GRB 140706A (trigger #603587) (Marshall, et al., GCN Circ. 16531). The BAT ground-calculated position is RA, Dec = 49.269, -38.058 deg which is RA(J2000) = 03h 17m 04.6s Dec(J2000) = -38d 03' 28.6" with an uncertainty of 1.1 arcmin, (radius, sys+stat, 90% containment). The partial coding was 77%. The mask-weighted light curve shows several peaks starting at ~T-20 sec, peaking at ~T-15, ~T+1 and ~T+28 sec, and ending at ~T+40 sec. T90 (15-350 keV) is 48.3 +- 4.3 sec (estimated error including systematics). The time-averaged spectrum from T-21.3 to T+39.6 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.8 +- 0.1. The fluence in the 15-150 keV band is 2.0 +- 0.1 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T-0.12 sec in the 15-150 keV band is 1.8 +- 0.2 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/603587/BA/