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TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1944 SUBJECT: IPN triangulation of GRB030320B (annulus) DATE: 03/03/21 18:54:57 GMT FROM: Kevin Hurley at UCBerkeley/SSL <khurley@sunspot.ssl.berkeley.edu> K. Hurley and T. Cline, on behalf of the Ulysses and HETE GRB teams, D. M. Smith, R. P. Lin, J. McTiernan, R. Schwartz, C. Wiggger, W. Hajdas, and A. Zehnder, on behalf of the RHESSI GRB team, and G. Ricker, J-L Atteia, N. Kawai, D. Lamb, S. Woosley, J. Doty, R. Vanderspek, J. Villasenor, G. Crew, G. Monnelly, N. Butler, J.G. Jernigan, A. Levine, F. Martel, E. Morgan, G. Prigozhin, J. Braga, R. Manchanda, G. Pizzichini, Y. Shirasaki, C. Graziani, M. Matsuoka, T. Tamagawa, K. Torii, T. Sakamoto, A. Yoshida, E. Fenimore, M. Galassi, T. Tavenner, T. Donaghy, M. Boer, J-F Olive, and J-P Dezalay, on behalf of the HETE GRB team, report: Ulysses, RHESSI, and HETE-FREGATE observed this GRB at 67757 seconds. As observed by Ulysses, it had a duration of approximately 150 seconds, a 25-100 keV fluence of approximately 1.2E-05 erg/cm2, and a peak flux of approximately 4.6E-07 erg/cm2 s over 0.50 seconds. We have triangulated it to a preliminary annulus centered at RA, Decl(2000)= 160.920, 41.819 degrees, whose radius is 85.870 +/- 0.122 degrees (3 sigma ). This annulus may be constrained and/or improved, but as the event was not observed by Mars Odyssey, a small error box cannot be derived for it.
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