TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  1676
SUBJECT: IPN triangulation of GRB021104 (annulus)
DATE:    02/11/06 00:34:34 GMT
FROM:    Kevin Hurley at UCBerkeley/SSL  <khurley@sunspot.ssl.berkeley.edu>

K. Hurley and T. Cline, on behalf of the Ulysses and HETE 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 (H2436) observed this GRB at 32792 seconds.  As
observed by Ulysses, it had a duration of approximately 10 seconds and
a 25-100 keV fluence of approximately  1.0E-06 erg/cm2.

We have triangulated it to a preliminary annulus centered  at RA,
Decl(2000) = 0.042, -35.331 degrees, whose radius is 84.393 +/-  0.083
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.