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GCN Circular 9029

Subject
GRB 090324: SuperAGILE Localization of a Long GRB
Date
2009-03-24T08:32:44Z (15 years ago)
From
Marco Feroci at IASF/INAF <feroci@iasf-roma.inaf.it>
F. Lazzarotto, E. Del Monte, I. Donnarumma, Y. Evangelista, M. Feroci, 
L. Pacciani, P. Soffitta, E. Costa, I. Lapshov, M. Rapisarda
(INAF/IASF Rome), A. Giuliani, A. Chen, S. Mereghetti, F. Perotti, 
P. Caraveo (INAF/IASF Milan), A. Pellizzoni, M. Pilia (INAF/OA Cagliari),
S. Vercellone (INAF/IASF Palermo), 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, G. Piano, S. Sabatini (INAF/IASF Rome), G. 
Barbiellini, F. Longo, E. Moretti (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, 
P. Santolamazza, F. Verrecchia (ASDC) and L. Salotti (ASI),
on behalf of the AGILE Team, report:

"SuperAGILE detected a gamma ray burst on 24 March 2009, at 02:48:09 UT.
The event had a duration of about 30 s in the 20-60 keV energy range,
with an overall FRED-like time structure. Assuming a crab-like energy 
spectrum, the peak flux on 1-s timescale was 1.8E-07 erg/cm2/s.
The burst position was reconstructed  as (RA, Dec)
(257.178, -48.147) deg, which is:

RA(J2000)  = 17h 08m 42.73s
Dec(J2000) = -48d 08' 47.59"

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."

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