TITLE: GCN CIRCULAR NUMBER: 14446 SUBJECT: IPN Triangulation of GRB 130425A DATE: 13/04/26 16:07:26 GMT FROM: Valentin Pal'shin at Ioffe Inst K. Hurley, and J. Goldsten, on behalf of the MESSENGER GRNS GRB team, S. Golenetskii, R. Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, D. Svinkin, and T. Cline on behalf of the Konus-Wind team, V. Connaughton, M. Briggs, and C. Meegan, on behalf of the Fermi GBM team, A. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo, and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team, and 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, report: The long-duration, intense GRB 130425A (Fermi/GBM detection: von Kienlin, GCN Circ. 14442) has been observed by Konus-Wind, MESSENGER (GRNS), INTEGRAL (SPI-ACS), and Suzaku (WAM), so far, at about 28280 s UT (07:51:20). We have triangulated it to a preliminary, 3 sigma error box whose coordinates are: --------------------------------------------- RA(2000), deg Dec(2000), deg --------------------------------------------- Center: 6.211 (00h 24m 51s) -70.183 (-70d 11' 00") Corners: 14.165 (00h 56m 40s) -70.601 (-70d 36' 05") 11.987 (00h 47m 57s) -70.402 (-70d 24' 09") 358.255 (23h 53m 01s) -69.341 (-69d 20' 28") 0.370 (00h 01m 29s) -69.740 (-69d 44' 24") --------------------------------------------- The error box area is 0.683 sq. deg, and its maximum dimension is 5.58 deg (the minimum one is 45 arcmin). This box may be improved. The center of the GBM location (von Kienlin, GCN Circ. 14442) is 4.6 deg from the center of the IPN box. A triangulation map is posted at http://www.ioffe.ru/LEA/GRBs/GRB130425_T28280/IPN/