TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  2194
SUBJECT: GRB030501B triangulation (single error box)
DATE:    03/05/02 11:10:39 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 Ulysses and Konus GRB teams,

K. Hurley, on behalf of the Ulysses GRB team, and

A. von Kienlin, G. Lichti, and A. Rau, on behalf of the
INTEGRAL SPI-ACS GRB team, report:

GRB030501B was detected by Konus-Wind at 01:17:21.824 UT
and Helicon-Coronas-F at 01:17:20.607 UT.

We have triangulated it to a preliminary annulus centered at
RA(2000) = 224.210 deg,
Decl(2000) = -21.142 deg,
Radius = 81.01 +/- 0.68 degrees (3 sigma ).
This annulus intersects the IPN annulus (GCN 2186) to form two
error boxes, only one of which has the correct ecliptic latitude.
Preliminary 3 sigma error box has approximate area of 400 sq. arcmin :

                        RA(2000)    Dec(2000)
ERROR BOX CENTER:      290.651        28.413
ERROR BOX CORNER 1:    291.282        28.814
ERROR BOX CORNER 2:    289.984        28.071
ERROR BOX CORNER 3:    290.026        28.007
ERROR BOX CORNER 4:    291.324        28.750