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GCN Circular 1634

Subject

IPN triangulation of GRB021013 (two small error boxes)

Date

2002-10-14T17:49:57Z (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 
and Helicon-Coronas-F GRB teams, report:

Ulysses, Mars Odyssey (HEND and GRS), Helicon, and Konus-Wind  observed
this GRB at 14496 seconds (GCN 1632Loading...
 
 ).  We have triangulated it to two
alternate, preliminary 3 sigma error boxes, each with area ~80 sq.
arcminutes:

    RA(2000)                              DEC(2000)
 ERROR BOX CENTER:  14 h 51 m 55.41 s    -56 o 13 '  55.57 " 
 ERROR BOX CORNER 1: 14 h 53 m 22.84 s    -56 o  3 '  41.08 " 
 ERROR BOX CORNER 2: 14 h 54 m 23.38 s    -55 o 59 '  49.55 " 
 ERROR BOX CORNER 3: 14 h 49 m 22.86 s    -56 o 28 '   9.56 " 
 ERROR BOX CORNER 4: 14 h 50 m 26.16 s    -56 o 24 '  13.51 " 

OR

 ERROR BOX CENTER: 9 h 32 m 54.34 s    -60 o 29 ' 43.75"
 ERROR BOX CORNER 5: 9 h 31 m  3.13 s    -60 o 21 '  40.45 " 
 ERROR BOX CORNER 6: 9 h 29 m 50.52 s    -60 o 19 '  16.57 "  
 ERROR BOX CORNER 7: 9 h 36 m  3.62 s    -60 o 40 '   9.89 " 
 ERROR BOX CORNER 8: 9 h 34 m 47.79 s    -60 o 37 '  46.96 " 

There is a strong probability, which cannot be quantified, that the
latter is in fact the correct position.  We will attempt to verify
this as soon as possible.

These error boxes may be improved.