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GCN Circular 1686

Subject
GRB021113 (=H2449): A Long GRB Localized by HETE
Date
2002-11-13T14:32:36Z (21 years ago)
From
George Ricker at MIT <grr@space.mit.edu>
GRB021113 (=H2449): A Long GRB Localized by HETE

A. Yoshida, Y. Shirasaki, C. Graziani, M. Matsuoka, T. Tamagawa, K. 
Torii, T. Sakamoto, E. Fenimore, M. Galassi, T. Tavenner, T. Donaghy, 
Y. Nakagawa, D. Takahashi, M. Suzuki, R. Satoh, and Y. Urata, on 
behalf of the HETE WXM Team;

G. Ricker, J-L Atteia, N. Kawai, D. Lamb, and S. Woosley on behalf of 
the HETE Science Team;

J. Villasenor, N. Butler, G. Crew, J. Doty, G. Prigozhin, R. 
Vanderspek, T. Cline, J. G. Jernigan, A. Levine, F. Martel, E. 
Morgan, G. Azzibrouck, J. Braga, R. Manchanda, and G. Pizzichini, on 
behalf of the HETE Operations and HETE Optical-SXC Teams;

M. Boer, J-F Olive, J-P Dezalay, C. Barraud and K. Hurley on behalf 
of the HETE FREGATE Team;

write:

At 06:38:56.9 UTC (23936.9 s UT) on 13 Nov 2002, the HETE FREGATE and 
WXM instruments detected event H2449, a long GRB.

Ground analysis of the WXM data for the burst produced a location 
which was reported in a GCN Position Notice at 08:39 UT.  Further 
ground analysis of the WXM data produced a refined location, which 
was reported in a second GCN Position Notice at 09:12 UT; an 
additional refinement was reported in a third Position Notice at 
13:17 UT.

The WXM localization SNR was 17. The refined WXM ground location can 
be expressed as an error box (90% confidence) of 230 sq-arcmin area 
centered at

RA = 01h 33m 53s, Dec = +40d 27' 45" (J2000).

The 4 corners of the WXM error box (90% confidence) are

RA = 01h 32m 44s, Dec = +40d 23' 56"  (J2000)
RA = 01h 32m 47s, Dec = +40d 32' 48"  (J2000)
RA = 01h 35m 02s, Dec = +40d 31' 33"  (J2000)
RA = 01h 34m 58s, Dec = +40d 22' 40"  (J2000)

The burst duration in the 8-40 keV band was about 20 s. In the 8-40 
keV band, the peak flux was >2 x 10-7 ergs cm-2 s-1 (ie > 5 x Crab 
flux; 1 s time scale) and the fluence was ~5 x 10-7 ergs cm-2 during 
the brightest 4 s of the burst .

A light curve for GRB021113 is provided at the following URL:

http://space.mit.edu/HETE/Bursts/GRB021113/

This message is citable.
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