TITLE: GCN CIRCULAR NUMBER: 15075 SUBJECT: IPN localization of GRB 130804A DATE: 13/08/06 17:13:25 GMT FROM: Valentin Pal'shin at Ioffe Inst S. Golenetskii, R. Aptekar, V. Pal'shin, D. Frederiks, D. Svinkin, and T. Cline, on behalf of the Konus-Wind team, K. Hurley on behalf of the IPN, V. Connaughton, M. S. Briggs, C. Meegan, and V. Pelassa, on behalf of the Fermi GBM team, S. Barthelmy, J. Cummings, N. Gehrels, H. Krimm, and D. Palmer, on behalf of the Swift-BAT team, K. Yamaoka, M. Ohno, Y. Hanabata, Y. Fukazawa, T. Takahashi, M. Tashiro, Y. Terada, T. Murakami, and K. Makishima, on behalf of the Suzaku WAM team, G. Di Cocco, F. Fuschino, M. Galli, C. Labanti, and M. Marisaldi, on behalf of the AGILE MCAL team, and D. M. Smith, J. McTiernan, and W. Hajdas, on behalf of the RHESSI team, report: The short-duration, hard spectrum, intense GRB 130804A (Yu, Goldstein, and Pelassa , GCN Circ. 15070) was observed by Fermi (GBM), Suzaku (WAM), Swift (BAT), AGILE (MCAL), Konus-Wind, and RHESSI at about 1995 s UT (00:33:15.353). The burst was outside the coded field of view of the BAT. We have triangulated this burst to a narrow Konus-GBM annulus centered at RA(2000)=324.539 deg (21h 38m 09s) Dec(2000)=-9.265 deg (-9d 15' 53"), whose radius is 71.038 ± 0.041 deg (3 sigma) and to a wide GBM-WAM annulus centered at RA(2000)=RA(2000)=102.159 deg (06h 48m 38s) Dec(2000)=-31.166 deg (-31d 09' 56"), whose radius is 68.583 ± 5.163 deg (3 sigma). These annuli intersect to form a long arc, whose coordinates are: --------------------------------------------- RA(2000), deg Dec(2000), deg --------------------------------------------- Center: 303.653 (20h 14m 37s) -79.591 (-79d 35' 28") Corners: 276.360 (18h 25m 26s) -75.021 (-75d 01' 15") 275.920 (18h 23m 41s) -75.010 (-75d 00' 37") 349.555 (23h 18m 13s) -79.299 (-79d 17' 56") 349.905 (23h 19m 37s) -79.175 (-79d 10' 29") --------------------------------------------- The arc area is 1.29 sq. arcmin, and its maximum dimension is 15.8 deg (the minimum one is 2.9 arcmin). The Sun distance was ~117 deg. The center of the GBM location (Yu, Goldstein, and Pelassa , GCN Circ. 15070) is 5.9 deg from the center of the IPN arc. A triangulation map is posted at http://www.ioffe.ru/LEA/GRBs/GRB130804_T01995/IPN/