TITLE: GCN GRB OBSERVATION REPORT NUMBER: 5256 SUBJECT: GRB 060614: Swift-BAT refined analysis DATE: 06/06/14 20:10:49 GMT FROM: Hans Krimm at NASA-GSFC S. Barthelmy (GSFC), L. Barbier (GSFC), J. Cummings (GSFC/UMD), E. Fenimore (LANL), N. Gehrels (GSFC), D. Hullinger (BYU-Idaho), H. Krimm (GSFC/USRA), M. Koss (GSFC/UMD), C. Markwardt (GSFC/UMD), D. Palmer (LANL), A. Parsons (GSFC), T. Sakamoto (GSFC/ORAU), G. Sato (GSFC/ISAS), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC), on behalf of the Swift-BAT team: Using the data set from T-120 s to T+180 sec from the recent telemetry downlink, we report further analysis of BAT GRB 060614 (trigger #214805) (Parsons et al 2006, GCN 5252). The BAT ground-calculated position is (RA,Dec) = 320.88, -53.035 { 21h 23m 31.8s , -53d 02' 04.4" } [deg; J2000]+-1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 16%. The BAT mask-weighted light curve shows an unusual multi-peaked burst structure that begins with an initial bright, ~ 6 second wide peak followed by a set of 5 fainter and somewhat softer peaks that increase in intensity. After about T+45s, the light curve shows a smooth slope down to the baseline level for a total duration of T90 (15-350 keV) = 102 +/- 5 sec. The power law index of the time-averaged spectrum is 2.13 +- 0.04. The fluence in the 15-150 keV band is 2.17+- 0.04 x 10^-5 erg/cm2. The 1-sec peak photon flux measured from T - 1.3 sec in the 15-150 keV band is 11.6 +- 0.7 ph/cm2/sec. All the quoted errors are at the 90% confidence level.