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GCN Circular 1625

Subject

IPN triangulation of GRB021008 (two small error boxes)

Date

2002-10-11T20:59:59Z (22 years ago)

From

Kevin Hurley at UCBerkeley/SSL <khurley@sunspot.ssl.berkeley.edu>

K. Hurley and T. Cline, on behalf of the Ulysses, Konus, and 
Mars Odyssey GRB teams,

I. Mitrofanov, D. Anfimov, A. Kozyrev, M. Litvak and A. Sanin,
on behalf of the HEND/Odyssey GRB team,

W. Boynton, C. Fellows, K. Harshman, C. Shinohara and R. Starr,
on behalf of the GRS/Odyssey GRB team, and

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

This burst (GCN 1617Loading...
 
 ) was also observed by Mars Odyssey (HEND and GRS).
We have triangulated it to two preliminary, 3 sigma error boxes whose 
approximate areas are  65 sq. arcmin. each and whose coordinates are:

    RA(2000)                              DEC(2000)
 ERROR BOX CENTER:  12 h 45 m 47.73 s     44 o 10 '  59.79 " 
 ERROR BOX CORNER 1: 12 h 46 m 19.03 s     44 o  8 '  30.23 " 
 ERROR BOX CORNER 2: 12 h 45 m 58.90 s     44 o 15 '  55.20 " 
 ERROR BOX CORNER 3: 12 h 45 m 36.49 s     44 o  6 '   4.47 " 
 ERROR BOX CORNER 4: 12 h 45 m 16.22 s     44 o 13 '  29.11 " 

or

 ERROR BOX CENTER:  10 h 38 m 18.98 s    43 o 52 ' 24.06 "
 ERROR BOX CORNER 5: 10 h 37 m 48.22 s   43 o 49 '  45.70 "
 ERROR BOX CORNER 6: 10 h 38 m  7.15 s   43 o 57 '  16.21 "
 ERROR BOX CORNER 7: 10 h 38 m 30.87 s   43 o 47 '  32.04 "
 ERROR BOX CORNER 8: 10 h 38 m 49.95 s   43 o 55 '   2.27 "

There is a strong probability, which cannot be quantified at the moment, 
that the former is in fact the correct one.  We will attempt to confirm this.  
These error boxes can be improved.