[vsnet-grb-info 2714] GRB 060121: A bright short/hard GRB localized by HETE-2 SXC

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4551
SUBJECT: GRB 060121:  A bright short/hard GRB localized by HETE-2 SXC
DATE:    06/01/22 00:06:45 GMT
FROM:    Don Lamb at U.Chicago  <lamb at oddjob.uchicago.edu>

GRB 060121:  A bright short/hard GRB localized by HETE-2 SXC

G. Prigozhin, G. Ricker, J-L. Atteia, N. Kawai, D. Lamb,
and S. Woosley, on behalf of the HETE Science Team;
 
M. Arimoto, T. Donaghy, E. Fenimore, M. Galassi, C. Graziani,
N. Ishikawa, A. Kobayashi, J. Kotoku, M. Maetou, M. Matsuoka,
Y. Nakagawa, T. Sakamoto, R. Sato, T. Shimokawabe, Y. Shirasaki,
S. Sugita, M. Suzuki, T. Tamagawa, K. Tanaka, and A. Yoshida, on behalf
of the HETE WXM Team;
 
N. Butler, G. Crew, J. Doty, R. Vanderspek, J. Villasenor,
J. G. Jernigan, A. Levine, G. Azzibrouck, J. Braga, R. Manchanda,
G. Pizzichini, and S. Gunasekera, 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
FREGATE Team;
 
report:
 
At 22:24:54.5 UTC (80694.5 SOD) on 21 January 2006 the HETE FREGATE,
WXM, and SXC instruments detected event H4010, a bright short GRB.

Ground analysis of the SXC data yields a best-fit location

R.A. = +09h 09m 57s ; Dec. = +45d 40' 30" (J2000),

with a 90% confidence error radius of 80 arcseconds.

Further analyses are in progress.  Further information about this burst
will be available at the following URL:

http://space.mit.edu/HETE/Bursts/GRB060121