GCN Circular 2399
Subject
IPN triangulation of GRB030921 (large error box)
Date
2003-09-24T23:37:08Z (21 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, S. Charyshnikov, V. Grinkov, 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:
Ulysses, Mars Odyssey-HEND, and Konus-Wind observed this GRB at 31103
seconds (GCN 2393). As observed by Ulysses, it had a duration of
approximately 16 seconds, a 25-100 keV fluence of approximately
3E-06 erg/cm2, and a peak flux of approximately 5E-07 erg/cm2 s
over 1.00 second.
We have triangulated it to a preliminary, 3 sigma error box whose
approximate area is 27000 sq. arcmin. and whose coordinates are:
RA(2000) DEC(2000)
ERROR BOX CENTER: 22 h 26 m 55.72 s 5 o 44 ' 14.82 "
ERROR BOX CORNER 1: 22 h 27 m 53.21 s 5 o 53 ' 12.52 "
ERROR BOX CORNER 2: 22 h 04 m 09.16 s 3 o 10 ' 28.20 "
ERROR BOX CORNER 3: 22 h 47 m 58.35 s 6 o 52 ' 53.32 "
ERROR BOX CORNER 4: 22 h 25 m 58.32 s 5 o 35 ' 07.34 "
The Konus-Helicon annulus given in GCN 2393 intersects this error
box and reduces its area to ~1100 sq. arcmin. The combined error box
has coordinates:
ERROR BOX CENTER: 22 h 27 m 14.28 s 5 o 44 ' 20.71 "
ERROR BOX CORNER 1: 22 h 31 m 31.81 s 6 o 01 ' 30.80 "
ERROR BOX CORNER 2: 22 h 22 m 56.53 s 5 o 27 ' 16.99 "
ERROR BOX CORNER 3: 22 h 31 m 22.34 s 6 o 07 ' 47.14 "
ERROR BOX CORNER 4: 22 h 23 m 06.43 s 5 o 20 ' 47.90 "
This error box may be improved slightly.