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GCN Circular 956

GRB010220: BeppoSAX WFC and GRBM preliminary data
2001-02-21T18:46:06Z (23 years ago)
Marco Feroci at IAS/CNR Frascati <>
R. Manzo, BeppoSAX Science Operation Center (SOC), Telespazio, Rome
R. G. Kaptein, SOC and Space Research Organization Netherlands
(SRON), Utrecht, and J.J.M. in' t Zand, Astronomical Institute, Utrecht
University and SRON, L. Piro, M. Feroci, G. Gandolfi, P. Soffitta and
E. Costa, Istituto di Astrofisica Spaziale del CNR, Rome, F. Frontera and
C. Guidorzi, Universita' di Ferrara, Ferrara and L. Amati, Istituto di
Tecnologia e Studio delle Radiazioni Extraterrestri del CNR, Bologna.

"The BeppoSAX Gamma Ray Burst Monitor (GRBM) and the Wide Field Camera
(WFC) unit 2 observed the GRB 010220 on February 20.952164 UT (GCN 952).
The event detected by the GRBM shows a single pulse with a time duration
of 40 s and a peak count rate of about 660 cts/s in the 40-700 keV
energy band. In the WFC, the duration is about 150 s and the peak flux is
0.7 Crab (2-26 keV). The centroid position of the X-ray counterpart from
the WFC image is R.A. = 2h36m59s, Dec = 61o46'.0 (equinox 2000.0) with
an error radius of 4' that includes uncertainties due to a non-optimum
attitude control configuration (GCN 953).
A follow-up observation with  BeppoSAX narrow-field instrument is in
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