TITLE: GCN CIRCULAR NUMBER: 7039 SUBJECT: GRB 071101, Swift-BAT refined analysis DATE: 07/11/02 14:14:12 GMT FROM: Scott Barthelmy at NASA/GSFC T. Ukwatta (GWU) S. D. Barthelmy (GSFC), J. Cummings (GSFC/UMBC), E. Fenimore (LANL), N. Gehrels (GSFC), H. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD), S. McBreen (MPE), D. Palmer (LANL), T. Sakamoto (GSFC/UMBC), G. Sato (GSFC/ISAS), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC), (i.e. the Swift-BAT team): Using the data set from T-240 to T+962 sec from recent telemetry downlinks, we report further analysis of BAT GRB 071101 (trigger #295779) (McBreen, et al., GCN Circ. 7030). The BAT ground-calculated position is RA, Dec = 48.179, 62.524 deg, which is RA(J2000) = 03h 12m 42.9s Dec(J2000) = 62d 31' 27" with an uncertainty of 2.7 arcmin, (radius, sys+stat, 90% containment). The partial coding was 99%. The mask-weighted light curve shows a single peak starting at a low level at ~T-20, then spiking at T+1 sec, and ending at ~T+10 sec. T90 (15-350 keV) is 9.0 +- 1.0 sec (estimated error including systematics). The time-averaged spectrum from T-1.9 to T+6.1 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 2.25 +- 0.58. The fluence in the 15-150 keV band is 7.6 +- 2.6 x 10^-8 erg/cm2. The 1-sec peak photon flux measured from T+0.07 sec in the 15-150 keV band is 0.4 +- 0.1 ph/cm2/sec. All the quoted errors are at the 90% confidence level.