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GCN Circular 3013

GRB050209 (=U11568): A Long GRB Detected by HETE
2005-02-09T06:23:53Z (19 years ago)
George Ricker at MIT <>
GRB050209 (=U11568):  A Long GRB Detected by HETE

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

T. Donaghy, E. Fenimore, M. Galassi, C. Graziani, M. Matsuoka, Y. 
Nakagawa, T. Sakamoto, R. Sato, Y. Shirasaki, M. Suzuki, T. Tamagawa, 
Y. Urata, T. Yamazaki, Y. Yamamoto, and A. Yoshida, on behalf of the 

N. Butler, G. Crew, J. Doty, G. Prigozhin, R. Vanderspek, J. 
Villasenor, J. G. Jernigan, A. Levine, 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, and K. Hurley, on behalf of the HETE 

report that:

Post-processing analysis of HETE data has revealed the presence of 
GRB 050209, an untriggered GRB (=U11568) detected as HETE was 
entering the SAA. The burst was detected at 01:31:41 UT and had a 
duration of approximately 40 seconds.  The GRB has been localized to 
a circle of radius 7' (90% confidence) centered at:

RA = 08h 26m 09s, DEC = +19d 41m 02s (J2000).

Light curves in four spectral bands and a skymap for GRB 050209 are
provided at the following URL:

Because of the proximity of the SAA, extraction of spectral data 
requires manual processing, and will be provided in a follow-up GCN 

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