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GCN Circular 1402

Subject
IPN triangulation of the short, hard GRB020531 (=H2042)
Date
2002-05-31T18:27:48Z (22 years ago)
From
Kevin Hurley at UCBerkeley/SSL <khurley@sunspot.ssl.berkeley.edu>
K. Hurley and T. Cline, on behalf of the Ulysses, Mars Odyssey, 
and HETE GRB teams,

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,

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 and Mars Odyssey (HEND) observed the short-duration, hard
spectrum GRB020531 (=H2042; GCN 1399).  While the HEND response was
quite intense, the Ulysses signal was particularly weak and could only
be identified by restricting the search to the crossing window defined
by the HETE position.  We have triangulated this burst to an ~46 square
arcminute (3 sigma) error box whose coordinates are:

15 h 15 m 04.10 s    -19 o 24 '  48.53 "  (CENTER)
15 h 14 m 20.83 s    -19 o 28 '  36.33 "  (CORNER)   
15 h 15 m 14.46 s    -19 o 21 '  38.39 "  (CORNER)   
15 h 14 m 53.75 s    -19 o 27 '  58.57 "  (CORNER)   
15 h 15 m 47.53 s    -19 o 20 '  59.17 "  (CORNER)

This error box may be improved.
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