TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  1662
SUBJECT: IPN triangulation of GRB021027 (single large error box)
DATE:    02/10/29 16:37:43 GMT
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 1658, 1660) was also observed by Mars Odyssey - HEND.  We
have triangulated it to a  preliminary, 3 sigma error boxes whose area
is ~1200  square arcminutes and whose coordinates are:


 ERROR BOX CENTER:  14 h 26 m 18.78 s    -22 o 42 '  26.04 " 
 ERROR BOX CORNER 1: 14 h 31 m 10.21 s    -22 o  8 '  58.20 " 
 ERROR BOX CORNER 2: 14 h 26 m 54.32 s    -22 o 47 '   8.38 " 
 ERROR BOX CORNER 3: 14 h 25 m 43.21 s    -22 o 37 '  43.62 " 
 ERROR BOX CORNER 4: 14 h 21 m  8.02 s    -23 o 16 '  57.75 " 

Only small improvements to this error box are expected.