GRB 130812***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-239 to T+963 sec from the recent telemetry downlink, we report further analysis of BAT GRB 130812***A*** (trigger #566228) (NAME, et al., GCN Circ. xxxx). The BAT ground-calculated position is RA, Dec = 92.388, -13.285 deg which is RA(J2000) = 06h 09m 33.1s Dec(J2000) = -13d 17' 06.4" with an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 75%. [Description about the mask-weighted light curve] T90 (15-350 keV) is 7.6 +- 0.5 sec (estimated error including systematics). The time-averaged spectrum from T-0.3 to T+8.5 sec is best fit by a power law with an exponential cutoff. This fit gives a photon index 1.10 +- 0.58, and Epeak of 26.5 +- 7.0 keV (chi squared 72.58 for 56 d.o.f.). For this model the total fluence in the 15-150 keV band is 5.6 +- 0.4 x 10^-07 erg/cm2 and the 1-sec peak flux measured from T-0.14 sec in the 15-150 keV band is 2.9 +- 0.2 ph/cm2/sec. A fit to a simple power law gives a photon index of 2.43 +- 0.11 (chi squared 93.66 for 57 d.o.f.). 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/566228/BA/