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GCN Circular 1417

Subject
IPN triangulation of GRB020604
Date
2002-06-07T18:55:53Z (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 Konus GRB teams,

I. Mitrofanov, D. Anfimov, A. Kozyrev, M. Litvak and A. Sanin on behalf of the
HEND/Odyssey GRB team,

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

D. M. Smith, R. P. Lin, J. McTiernan, R. Schwartz, C. Wigger, W. Hajdas,
and A. Zehnder, on behalf of the RHESSI GRB team, and

W. Boynton, C. Fellows, K. Harshman, C. Shinohara and R. Starr, on behalf of
the GRS/Odyssey GRB team, report:

Ulysses, Konus, RHESSI, and HEND observed this burst at ~51223 s.
As observed by Ulysses, it had a duration ~10 s, a 25-100 keV
fluence of ~3E-6 erg/cm^2, and a peak flux over 0.5 s of
~5E-7 erg/cm^2 s.  We have triangulated it to a preliminary,
3 sigma error box whose area is ~160 square arcminutes and whose
coordinates are:

    RA(2000)                 DEC(2000)
 16 h 27 m 32.31 s    -29 o 48 '  21.41 "  (CENTER)
 16 h 25 m 56.99 s    -29 o 59 '  26.08 "  (CORNER)
 16 h 27 m 59.70 s    -29 o 41 '  20.90 "  (CORNER)
 16 h 27 m 05.07 s    -29 o 55 '  20.70 "  (CORNER)
 16 h 29 m 08.79 s    -29 o 37 '  05.87 "  (CORNER)

Some improvement in this error box is possible.  A map
will be posted shortly to sunspot.ssl.berkeley.edu/ipn3/020604.
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