TITLE: GCN CIRCULAR NUMBER: 7571 SUBJECT: GRB 080408: GRB Localization by SuperAGILE DATE: 08/04/08 20:56:13 GMT FROM: Marco Feroci at IASF/INAF Subject: GRB 080408: Gamma Ray Burst Localization by SuperAGILE P. Soffitta, I. Donnarumma, E. Del Monte, M. Feroci, Y. Evangelista, E. Costa, I. Lapshov, F. Lazzarotto, L. Pacciani, M. Rapisarda (INAF/IASF Rome), A. Giuliani, S. Vercellone, A. Chen, S. Mereghetti, A. Pellizzoni, F. Perotti, F. Fornari, M. Fiorini, P. Caraveo, A. Zambra (INAF/IASF Milan), A. Bulgarelli, F. Gianotti, M. Trifoglio, G. Di Cocco, C. Labanti, F. Fuschino, M. Marisaldi, M. Galli, (INAF/IASF Bologna), M. Tavani, G. Pucella, F. D'Ammando, V. Vittorini, A. Argan, A. Trois (INAF/IASF Rome), G. Barbiellini, F. Longo (INFN Trieste), P. Picozza, A. Morselli (INFN Roma-2), M. Prest, E. Vallazza (Universita` dell'Insubria), P. Lipari, D. Zanello (INFN Roma-1), and P. Giommi, C. Pittori, (ASDC) and L. Salotti (ASI), on bhealf of the AGILE Team, report: "SuperAGILE detected and localized a gamma ray burst on April 8th, at 18:12:48 UT. The event was approximately 13 degrees off-axis. The observed duration in the 20-60 keV energy range is about 20 seconds, with a single pulse structure. The burst was triggered and localized onboard, although distributed after verfication on ground. The burst position was reconstructed as (RA, Dec) (114.678 deg, 33.305 deg), which is: RA(J2000) = 07h 38m 42.68s Dec(J2000) = 33d 18' 16.7" with an uncertainty of 3' radius. The given uncertainty accounts for both the statistical and systematic errors. An analysis of the AGILE Gamma Ray Imager (GRID) data is in progress." This message may be cited.