TITLE: GCN CIRCULAR NUMBER: 16402 SUBJECT: GRB 140614A: Swift-BAT refined analysis DATE: 14/06/14 16:27:03 GMT FROM: Scott Barthelmy at NASA/GSFC 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), K. L. Page (U Leicester), 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 recent telemetry downlinks, we report further analysis of BAT GRB 140614A (trigger #601646) (Page, et al., GCN Circ. 16391). The BAT ground-calculated position is RA, Dec = 231.171, -79.110 deg, which is RA(J2000) = 15h 24m 41.1s Dec(J2000) = -79d 06' 36.9" with an uncertainty of 2.4 arcmin, (radius, sys+stat, 90% containment). The partial coding was 97%. The mask-weighted light curvea shows a broad peak starting at ~T-80 sec, peaking at ~T+55 sec, and returning to baseline at ~T+200 sec (and possibly out to around T+600 sec). The formal T90 (15-350 keV) is 720 +- 160 sec, but with the long weak possible tail of this event it is hard to determine the true end of the event (estimated error including systematics). The time-averaged spectrum from T+0.51 to T+957 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.50 +- 0.46. The fluence in the 15-150 keV band is 1.3 +- 0.4 x 10^-6 erg/cm2. 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/601646/BA/