K. Hurley and T. Cline, on behalf of the Ulysses, HETE, Mars Odyssey,
and KONUS GRB teams,
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,
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:
The IPN and HETE have observed numerous SGR-like bursts between August
10 and 18. The following table summarizes them. In the one case below
where the burst was only observed by Ulysses, the true Earth-crossing
time is uncertain by about +/- 3000 s. The time given below is under
the assumption that the arrival direction was the general region near
Date, Earth Observed Localized? GCN Circular
August Crossing by Number
2003 Time, s.
10 27050 Ulysses, Konus Yes***
11 57988 Ulysses, HETE (2800) Yes*
12 31339 Ulysses, Konus Yes***
13 35523 HETE (2802), Konus Yes** 2351
15 40524 HETE (2806), RHESSI Yes***
16 82760 Ulysses No
18 41499 HETE (2810) Yes***
18 50231 Ulysses, HEND, INTEGRAL, Konus Yes* 2354, 2355
*Localization indicates that the most likely source is SGR1806-20
**Localization indicates that the most likely source is SGR1808-20
***Localization cannot be used to distinguish between SGR1806 and SGR1808