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GCN Circular 2230

Subject
IPN triangulation of GRB030518A (annulus)
Date
2003-05-19T00:05:14Z (21 years ago)
From
Kevin Hurley at UCBerkeley/SSL <khurley@sunspot.ssl.berkeley.edu>
K. Hurley and T. Cline, on behalf of the Ulysses and Konus GRB teams,

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

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

A. von Kienlin, G. Lichti, and A. Rau, on behalf of the INTEGRAL
SPI-ACS 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, RHESSI, Konus-Wind, INTEGRAL (SPI-ACS), and HETE-FREGATE
(H2714) observed this GRB at 05024 seconds.  As observed by Ulysses, it
had a duration of approximately 25 seconds, a 25-100 keV fluence of
approximately  1.5E-05 erg/cm2, and a peak flux of approximately
1.3E-06 erg/cm2 s over 0.25 seconds.

We have triangulated it to a preliminary annulus centered  at RA,
Decl(2000)= 331.814, -35.254 degrees, whose radius is 47.844 +/-  0.025
degrees (3 sigma).

This annulus may be constrained and/or improved. but it is not known at
this point whether this event was observed by Mars Odyssey, and thus
whether a small error box can be derived for it.
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