GRB 100814***A***, Swift-BAT refined analysis S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), A. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), T. N. Ukwatta (LANL) (i.e. the Swift-BAT team): Using the data set from T-663 to T+963 sec from the recent telemetry downlink, we report further analysis of BAT GRB 100814***A*** (trigger #431605) (NAME, et al., GCN Circ. xxxx). The BAT ground-calculated position is RA, Dec = 22.479, -17.991 deg which is RA(J2000) = 01h 29m 55.0s Dec(J2000) = -17d 59' 27.0" with an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 90%. [Description about the mask-weighted light curve] T90 (15-350 keV) is 177.3 +- 10.8 sec (estimated error including systematics). The time-averaged spectrum from T-3.2 to T+244.6 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.45 +- 0.04. The fluence in the 15-150 keV band is 8.8 +- 0.2 x 10^-06 erg/cm2. The 1-sec peak photon flux measured from T+4.21 sec in the 15-150 keV band is 2.5 +- 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/431605/BA/