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GCN Circular 1944

Subject
IPN triangulation of GRB030320B (annulus)
Date
2003-03-21T18:54:57Z (21 years ago)
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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