GCN Circular 2500

K. Hurley and T. Cline, on behalf of the Ulysses, Mars Odyssey,
and Konus GRB teams,

E. Mazets and S. Golenetskii, on behalf of the Konus-Wind GRB team,

I. Mitrofanov, S. Charyshnikov, V. Grinkov, A. Kozyrev, M. Litvak, and
A. Sanin, on behalf of the HEND-Odyssey GRB team,

W. Boynton, C. Fellows, K. Harshman, C. Shinohara and R. Starr, on
behalf of the GRS-Odyssey GRB team,

D. M. Smith, R. P. Lin, J. McTiernan, R. Schwartz, C. Wigger, W.
Hajdas, and A. Zehnder, on behalf of the RHESSI GRB team, and

A. von Kienlin, G. Lichti, and A. Rau, on behalf of the INTEGRAL
SPI-ACS GRB team, report:

Konus-Wind, Mars Odyssey (HEND and GRS), RHESSI, and INTEGRAL (SPI-ACS)
observed this ~10 s long event at 20344 s.  We have triangulated it to a
preliminary annulus centered at RA, Decl(2000)= 1.486, +0.348 degrees,
whose radius is 53.410 +/- 0.038 degrees (3 sigma).  In addition, the
Konus ecliptic latitude response limits the arrival directions to a
band between ecliptic latitudes -32 and -24 degrees, and RHESSI
Earth-blocking eliminates one possible intersection of this band with
the annulus.  The remaining error box is that section of the annulus
between RA, Decl=323, -40 degrees and 331.5, -46.1 degrees.  This
localization may be improved, but a small error box cannot be derived
for this event.