TITLE: GCN CIRCULAR NUMBER: 9124 SUBJECT: GRB 090328b: IPN Triangulation DATE: 09/04/12 09:28:01 GMT FROM: Dmitry Frederiks at Ioffe Institute S. Golenetskii, R.Aptekar, D. Frederiks, E. Mazets, V. Pal'shin, and T. Cline on behalf of the Konus-Wind and Konus-RF teams, K. Hurley and T. Cline, on behalf of the Mars Odyssey and Konus GRB teams, 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, G. Lichti, and A. Rau, and K. Hurley on behalf of the INTEGRAL SPI-ACS team, E. Costa, E. Del Monte, I. Donnarumma, Y. Evangelista, M. Feroci, I. Lapshov, F. Lazzarotto, L. Pacciani, M. Rapisarda, P. Soffitta, for the SuperAGILE team, G. Di Cocco, F. Fuschino, M. Galli, C. Labanti, M. Marisaldi, on behalf of the AGILE MCAL team report: Konus-Wind, Konus-RF, Mars-Odyssey (GRS and HEND), and INTEGRAL-SPI-ACS observed the intense GRB 090408b (Golenetskii et al., GCN 9121). It was also observed by AGILE-MCAL and SuperAGILE (outside the coded field of view). We have triangulated it to the following 3-sigma error box: ----------------------------------------------- RA(2000), deg Dec(2000), deg ----------------------------------------------- Center: 43.98 (02h 55m 56s) +26.61 (+26d 36' 36") Corners: 43.95 (02h 55m 48s) +27.59 (+27d 35' 24") 42.98 (02h 51m 55s) +27.78 (+27d 46' 48") 44.05 (02h 56m 12s) +25.64 (+25d 38' 24") 44.97 (02h 59m 53s) +25.49 (+25d 29' 24") ----------------------------------------------- The error box area is 1.48 sq. deg. This error box may be improved. IPN triangulation map is avalable at at http://www.ioffe.ru/LEA/GRBs/GRB090408_T71198/IPN --