[vsnet-grb-info 2236] GRB051008: Refined analysis of the Swift-BAT burst

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4075
SUBJECT: GRB051008:  Refined analysis of the Swift-BAT burst
DATE:    05/10/09 01:54:18 GMT
FROM:    Scott Barthelmy at NASA/GSFC  <Scott at lheamail.gsfc.nasa.gov>

A. Parsons (GSFC), L. Barbier (GSFC), S. Barthelmy (GSFC),
J. Cummings (GSFC/NRC), E. Fenimore (LANL), N. Gehrels (GSFC),
D. Hullinger (GSFC/UMD), H. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD), 
T. McMahon (Langston U.), D. Palmer (LANL), T. Sakamoto (GSFC/NRC),
G. Sato (ISAS), J. Tueller (GSFC), N. White (GSFC)
on behalf of the Swift-BAT team:

Using a partial data set from recent telemetry downlinks, we report
further analysis of Swift-BAT Trigger #158855 (Marshall, et al., GCN 4069).
So far all we have is data from T-300 to T+32 sec.  The ground-analysis
position is RA,Dec 202.851,+42.101 {13h 31m 24.2s,+42d  6'  4.4"} (J2000)
with an uncertainty of 0.8 arcmin (radius, 90%, stat+sys).  The lightcurve
has two overlapping peaks whose emission starts at T-25.  There are is
a small peak at T+18.  The emission continues beyond T+32 sec.  When we get
the full data set, we will report the standard T90, fluence, and 
peak flux values for this burst.