TITLE: GCN CIRCULAR NUMBER: 15938 SUBJECT: IPN Triangulation of GRB 140306A DATE: 14/03/07 10:36:13 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 and J. Goldsten, on behalf of the MESSENGER NS GRB team, I. G. Mitrofanov, D. Golovin, M. L. Litvak, and A. B. Sanin, on behalf of the HEND-Odyssey GRB team, W. Boynton, C. Fellows, K. Harshman, H. Enos, and R. Starr, on behalf of the GRS-Odyssey GRB team, A. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo, and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB 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, and S. Barthelmy, J. Cummings, N. Gehrels, H. Krimm, and D. Palmer, on behalf of the Swift-BAT team, report: The long-duration, intense GRB 140306A (Fitzpatrick and Stanbro, GCN Circ. 15935) was observed by Fermi (GBM), INTEGRAL (SPI-ACS), Konus-Wind, MESSENGER (GRNS), Suzaku (WAM), Swift (BAT), and Mars Odyssey (HEND) at about 12585 s UT (03:29:45). The burst was outside the coded field of view of the BAT. We have triangulated it to a preliminary, 3 sigma error box whose coordinates are: --------------------------------------------- RA(2000), deg Dec(2000), deg --------------------------------------------- Center: 27.943 (01h 51m 46s) +48.975 (+48d 58' 31") Corners: 28.544 (01h 54m 11s) +48.781 (+48d 46' 52") 28.271 (01h 53m 05s) +49.135 (+49d 08' 06") 27.339 (01h 49m 21s) +49.163 (+49d 09' 47") 27.617 (01h 50m 28s) +48.814 (+48d 48' 50") --------------------------------------------- The error box area is 0.209 sq. deg, and its maximum dimension is 53 arcmin (the minimum one is 20 arcmin). This box may be improved. A triangulation map is posted at http://www.ioffe.ru/LEA/GRBs/GRB140306_T12581/IPN/