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GCN Circular 2952

Subject
GRB050117: Swift-BAT detection of a long multi-peaked burst
Date
2005-01-17T14:57:54Z (19 years ago)
From
Scott Barthelmy at NASA/GSFC <Scott@lheamail.gsfc.nasa.gov>
T. Sakamoto (GSFC), S. Barthelmy, L. Barbier (GSFC), A. Blustin (MSSL),
J. Cummings (GSFC), E. Fenimore (LANL), N. Gehrels (GSFC),
D. Hullinger (GSFC/UMD), J. Kennea (PSU) H. Krimm (GSFC/USRA),
C. Markwardt (GSFC/UMD), K. McLean (LANL), T. McMahon (Langston U.),
D. Palmer (LANL), A. Parsons (GSFC), G. Sato (ISAS), P. Schady (MSSL),
M. Suzuki (Saitama), J. Tueller (GSFC)
on behalf of the Swift-BAT team:

At 12:52:36 UT, the Swift Burst Alert Telescope (BAT) triggered and
located on-board GRB050117.  The spacecraft autonomously slewed
to the burst for the first time with a real GRB.

The BAT on-board calculated location is RA,Dec 358.427,+65.945 (J2000)
with an uncertainty of 4 arcmin (radius, 3-sigma, including a systematic
uncertainty).  This is within 55 arcsec of the XRT position (Burrows et al.,
GCN Circ 2951).  This burst occurred while Swift was near the SAA.
The lightcurve is multi-peaked with a duration of ~200 sec.  We note that
the XRT was on target during the later portion of the gamma-ray phase
of the burst.
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