TITLE:   GCN CIRCULAR
NUMBER:  2393
SUBJECT: GRB030921 triangulation (annulus)
DATE:    03/09/22 13:42:10 GMT
FROM:    Dmitry Frederiks at Ioffe Institute  <fred@mail.ioffe.ru>

S. Golenetskii, E. Mazets, V. Pal'shin, and D. Frederiks on behalf
of Konus-Wind and Helicon/Coronas-F teams,

T. Cline, on behalf of the Konus GRB team,

GRB030921 was detected by Konus-Wind at 08:38:23.283 UT
and Helicon-Coronas-F at 08:38:22.605 UT. It has a duration of ~16 sec.

We have triangulated it to a preliminary annulus centered at
RA(2000) = 261.175 deg,
Decl(2000) = -18.929 deg,
Radius = 78.4 +/- 1.1 degrees (3 sigma ).