GCN Circular 1938

K. Hurley and T. Cline, on behalf of the Ulysses and HETE GRB teams, 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 and HETE-FREGATE  observed this GRB at 25133 seconds.  As
observed by Ulysses, it had a duration of approximately 20 seconds, a
25-100 keV fluence of approximately  1.6E-05 erg/cm2, and a peak flux
of approximately  1.7E-06 erg/cm2 s over 0.25 seconds.

We have triangulated it to a preliminary annulus centered  at RA,
Decl(2000)= 342.016, -41.985 degrees, whose radius is 42.684 +/-  0.077
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.