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GCN Circular 1232

Subject
IPN triangulation of GRB020127 (=H1902)
Date
2002-01-28T19:29:57Z (22 years ago)
From
Kevin Hurley at UCBerkeley/SSL <khurley@sunspot.ssl.berkeley.edu>
K. Hurley, on behalf of the Ulysses and HETE GRB teams;

E. Mazets and S. Golenetskii, on behalf of the Konus-WIND
GRB team; 

T. Cline, on behalf of the Ulysses, Konus, and HETE GRB teams;

G. Ricker, D. Lamb, and S. Woosley on behalf of the HETE Science Team;

R. Vanderspek, G. Crew, J. Doty, G. Monnelly, J. Villasenor, N.
Butler, T. Cline, J.G. Jernigan, A. Levine, F. Martel, E. Morgan, G.
Prigozhin, J. Braga, R. Manchanda, and G. Pizzichini, on behalf of
the HETE Operations and HETE Optical-SXC Teams;

N. Kawai, M. Matsuoka, Y. Shirasaki, T. Tamagawa, K. Torii, T.
Sakamoto, A. Yoshida, E. Fenimore, M. Galassi, T. Donaghy, C. Graziani, 
and T. Tavenner, on behalf of the HETE WXM Team;

J-L Atteia, M. Boer, J-F Olive, and J-P Dezalay, on behalf
of the HETE FREGATE Team;

report:

Ulysses and Konus-Wind observed GRB020127 (=H1902, GCN 1229).
Triangulation gives an annulus centered at RA(2000)= 263.183 deg.,
Decl.(2000)=+67.504 deg., with radius 71.317 +/- 0.101 deg. (3 sigma).
This annulus intersects the 90% confidence HETE WXM error circle (GCN
1229) at four points:

RA(2000)	Dec(2000)
123.884         +36.643
123.616         +36.701
123.852         +36.859
123.780         +36.875

The combined annulus/error circle has an area approximately 15%
smaller than the error circle alone, or approximately 165 square
arcminutes.

A map has been posted at ssl.berkeley.edu/ipn3/020127.
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