GCN Circular 509
Subject
IPN localization of GRB991226
Date
1999-12-27T23:33:55Z (25 years ago)
From
Kevin Hurley at UCBerkeley/SSL <khurley@sunspot.ssl.berkeley.edu>
K. Hurley, on behalf of the Ulysses GRB team, M. Feroci, on behalf
of the BeppoSAX GRB team, and T. Cline, on behalf of the NEAR GRB
team, report:
Ulysses, the BeppoSAX GRBM, and NEAR observed a ~25 s long burst
whose 25-100 keV fluence was ~2 x 10^-6 erg/cm^2 on December 26,
1999 at 14:59:57 UT. We have triangulated this burst to two
possible ~70 sq. arcmin. error boxes, whose coordinates are given
below. Further examination of the BeppoSAX data should allow us
to determine which of the intersections the burst originates
from.
RA(2000) DEC(2000)
14 h 38 m 50.18 s -61 o 26 ' 9.81 "
14 h 38 m 17.77 s -61 o 41 ' 15.52 "
14 h 38 m 36.73 s -61 o 14 ' 11.84 "
14 h 38 m 4.71 s -61 o 29 ' 22.01 "
OR
RA(2000) DEC(2000)
13 h 14 m 42.16 s -1 o 46 ' 50.68 "
13 h 13 m 54.72 s -1 o 36 ' 44.08 "
13 h 15 m 4.53 s -1 o 57 ' 32.89 "
13 h 14 m 17.01 s -1 o 47 ' 21.34 "