TITLE: GCN CIRCULAR NUMBER: 14214 SUBJECT: GRB 130215A: Swift-BAT refined analysis DATE: 13/02/15 13:03:30 GMT FROM: Scott Barthelmy at NASA/GSFC S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), V. D'Elia (ASDC), E. E. Fenimore (LANL), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), A. Y. Lien (NASA/GSFC/ORAU), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), G. Sato (ISAS), 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 130215A (trigger #548760) (D'Elia, et al., GCN Circ. 14204). The BAT ground-calculated position is RA, Dec = 43.486, 13.387 deg which is RA(J2000) = 02h 53m 56.7s Dec(J2000) = +13d 23' 13.6" with an uncertainty of 1.5 arcmin, (radius, sys+stat, 90% containment). The partial coding was 8%. The mask-weighted light curve starts at ~T-10 sec, peaks at ~T+10 sec, and slowly returns to baseline at ~T+170 sec. T90 (15-350 keV) is 65.7 +- 10.8 sec (estimated error including systematics). The time-averaged spectrum from T-5.83 to T+73.38 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.59 +- 0.14. The fluence in the 15-150 keV band is 5.4 +- 0.5 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T+11.16 sec in the 15-150 keV band is 2.5 +- 0.7 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/548760/BA/ We note that the BAT trigger occurred during a telemetry downlink session during which the real-time TDRSS messages (that GCN uses) are buffered on-board until the end of the downlink. For this trigger the minimum bufferring delay to the ground was 692 sec.