GCN Circular 2238

D. Lamb, G. Ricker, J-L Atteia, N. Kawai, and S. Woosley on behalf of
the HETE Science Team;

C. Barraud, M. Boer, J-F Olive, J-P Dezalay, and K. Hurley on behalf of
the HETE FREGATE Team;

J. Doty, R. Vanderspek, G. Crew, J. Villasenor, G. Monnelly, N. Butler,
T. Cline, J. G. Jernigan, A. Levine, F. Martel, E. Morgan, G. Prigozhin,
G. Azzibrouck, J. Braga, R. Manchanda, and G. Pizzichini, on behalf of
the HETE Operations and HETE Optical-SXC Teams;

Y. Shirasaki, C. Graziani, T. Donaghy, M. Matsuoka, M. Suzuki, T.
Tamagawa, K. Torii, T. Sakamoto, A. Yoshida, E. Fenimore, M. Galassi,
T. Tavenner, Y. Nakagawa, D. Takahashi, R. Satoh, and Y. Urata, on
behalf of the HETE WXM Team;

write:

>From an analysis of the HETE FREGATE data for GRB030519B (=H2716), we
find that the peak flux over 5 s is ~ 8 x 10^-7 erg cm-2 s-1 in the
7-30 keV energy band and ~ 7 x 10^-6 erg cm-2 s-1 in the 30-400 keV
energy band.  Similarly, we find that the fluence of the burst is 7 x
10^-6 erg cm^-2 in the 7-30 keV energy band and ~ 6 x 10^-5 erg cm-2 in
the 30-400 keV energy band.  Thus this burst is bright and its fluence
is large (the latter is in the top 1% of those for all BATSE bursts).
In addition, a preliminary spectral analysis of the FREGATE data
indicates that the spectral slope of the burst at high (> 100 keV)
energies is > -2, and thus E_peak > 400 keV.

In GCN Circular 2235
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  (Lamb et al. 2003), the date of the burst was
reported as 3 May 2003 and the width of the WXM localization rectangle
was reported as 24 arcminutes.  These are incorrect; the date of the
burst is 19 May 2003 and the width of the localization rectangle is
17.4 arcminutes.  Neither affect the WXM or the HETE/IPN error boxes
reported in GCNs 2235
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  (Lamb et al. 2003) and 2237 (Hurley et al. 2003);
the size of the latter is ~35 square arcminutes.

Follow-up observations of this burst are strongly encouraged.