TITLE: GCN CIRCULAR NUMBER: 15738 SUBJECT: GRB 140114A: Swift-BAT refined analysis DATE: 14/01/14 22:29:15 GMT FROM: Scott Barthelmy at NASA/GSFC H. A. Krimm (GSFC/USRA), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), A. Y. Lien (NASA/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), E. Troja (NASA/GSFC/UMCP), 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 140114A (trigger #583861) (Troja, et al., GCN Circ. 15728). The BAT ground-calculated position is RA, Dec = 188.498, 27.942 deg, which is RA(J2000) = 12h 33m 59.6s Dec(J2000) = +27d 56' 31.9" with an uncertainty of 1.9 arcmin, (radius, sys+stat, 90% containment). The partial coding was 100%. The mask-weighted light curve shows one roughly symmetrical peak starting at ~T+10 sec, peaking at ~T+100 sec, and ending at ~T+210 sec. There are a few small peaks riding on top of the main peak. T90 (15-350 keV) is 139.7 +- 16.4 sec (estimated error including systematics). The time-averaged spectrum from T+24.2 to T+202.5 sec (with 2.7 sec missing in the middle due to data drop outs) is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 2.06 +- 0.09. The fluence in the 15-150 keV band is 3.2 +- 0.1 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T+115.88 sec in the 15-150 keV band is 0.9 +- 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/583861/BA/