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GCN Circular 1653

Subject
IPN triangulation of GRB021023 (small error boc)
Date
2002-10-24T20:03:05Z (22 years ago)
From
Kevin Hurley at UCBerkeley/SSL <khurley@sunspot.ssl.berkeley.edu>
K. Hurley and T. Cline, on behalf of the Ulysses, Konus, MO, and HETE
GRB teams,

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

I. Mitrofanov, D. Anfimov, 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, and

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, report:

Ulysses, Mars Odyssey-HEND, HETE-FREGATE, and Konus-Wind observed this
GRB at 10425 seconds.  As observed by Ulysses, it had a duration of
approximately  15 seconds, a 25-100 keV fluence of approximately
4.1E-6 erg/cm2, and a peak flux of approximately  6.8E-07 erg/cm2 s
over 0.50 seconds.

We have triangulated it to a preliminary, 3 sigma error box whose
approximate area is 55 sq. arcmin. and whose coordinates are:

    RA(2000)                              DEC(2000)
 ERROR BOX CENTER:  7 h 24 m 55.03 s      -16 o 16 '  51.55 " 
 ERROR BOX CORNER 1: 7 h 24 m 19.40 s     -16 o 09 '  44.82 " 
 ERROR BOX CORNER 2: 7 h 25 m 01.41 s     -16 o 21 '  18.28 " 
 ERROR BOX CORNER 3: 7 h 24 m 48.66 s     -16 o 12 '  24.84 " 
 ERROR BOX CORNER 4: 7 h 25 m 30.74 s     -16 o 23 '  58.17 " 

This error box may be improved.
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