H. A. Krimm (GSFC/USRA), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), E. E. Fenimore (LANL), N. Gehrels (GSFC), C. B. Markwardt (GSFC/UMD), K. L. Page (U Leicester), D. M. Palmer (LANL), A. M. Parsons (GSFC), T. Sakamoto (GSFC/UMBC), G. Sato (ISAS), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC), T. N. Ukwatta (GWU) (i.e. the Swift-BAT team):

Using the data set from T-240 to T+962 sec from the recent telemetry downlink, we report further analysis of BAT GRB 090726 (trigger #358422) (Page, et al., GCN 9706). The BAT ground-calculated position is RA, Dec = 248.681, 72.866 deg which is RA(J2000) = 16h 34m 43.5s Dec(J2000) = +72d 51' 56.5" with an uncertainty of 1.7 arcmin, (radius, sys+stat, 90% containment). The partial coding was 85%. The mask-weighted light curve shows a weak single peak starting at ~T-40 sec, peaking at ~T+5 aec, and ending at ~T+70 sec. T90 (15-350 keV) is 67.0 +/- 15.2 sec (estimated error including systematics). The time-averaged spectrum from T-34.7 to T+47.3 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 2.25 +/- 0.19. The fluence in the 15-150 keV band is 8.6 +/- 1.0 x 10^-07 erg/cm2. The 1-sec peak photon flux measured from T+7.30 sec in the 15-150 keV band is 0.7 +- 0.2 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/358422/BA/

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