GCN Circular 1450
Subject
IPN triangulation of GRB020708
Date
2002-07-08T23:19:56Z (22 years ago)
From
Kevin Hurley at UCBerkeley/SSL <khurley@sunspot.ssl.berkeley.edu>
K. Hurley, on behalf of the Ulysses GRB team,
T. Cline, on behalf of the Ulysses and Konus-Wind GRB teams,
E. Mazets and S. Golenetskii, on behalf of the Konus-Wind GRB team,
I. Mitrofanov, D. Anfimov, 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, report:
Ulysses, Konus, and Mars Odyssey-HEND observed this burst at 16451 s.
As observed by Ulysses, it had a duration of about 150 seconds, a
25-100 keV fluence of approximately 1.4E-05 erg/cm2, and a peak flux of
approximately 1.0E-06 erg/cm2 s over 0.25 seconds.
We have triangulated it to two alternate, preliminary, 3 sigma error
boxes each with approximate area 110. square arcminutes whose
coordinates are:
RA(2000) DEC(2000)
ERROR BOX CENTER: 9 h 16 m 19.46 s 28 o 26 ' 37.60 "
ERROR BOX CORNER 1: 9 h 16 m 13.03 s 28 o 23 ' 22.43 "
ERROR BOX CORNER 2: 9 h 16 m 25.91 s 28 o 29 ' 52.73 "
ERROR BOX CORNER 3: 9 h 16 m 56.59 s 28 o 19 ' 23.24 "
ERROR BOX CORNER 4: 9 h 15 m 41.80 s 28 o 33 ' 58.02 "
ERROR BOX CORNER 5: 9 h 15 m 49.64 s 28 o 27 ' 31.01 "
ERROR BOX CORNER 6: 9 h 16 m 49.24 s 28 o 25 ' 44.61 "
OR
ERROR BOX CENTER: 7 h 58 m 5.36 s 41 o 35 ' 38.95 "
ERROR BOX CORNER 7: 7 h 57 m 49.90 s 41 o 33 ' 35.55 "
ERROR BOX CORNER 8: 7 h 58 m 20.82 s 41 o 37 ' 42.25 "
ERROR BOX CORNER 9: 7 h 57 m 18.40 s 41 o 42 ' 08.53 "
ERROR BOX CORNER 10: 7 h 58 m 52.84 s 41 o 29 ' 03.72 "
ERROR BOX CORNER 11: 7 h 58 m 17.24 s 41 o 29 ' 25.08 "
ERROR BOX CORNER 12: 7 h 57 m 53.51 s 41 o 41 ' 52.39 "
There is a chance that the ambiguity can be resolved by further
processing. These error boxes may be improved.
A map will be posted shortly at ssl.berkeley.edu/ipn3/020708. Note
that somewhat larger, four-sided error boxes were circulated in the GCN
socket message, for reasons related to the formatting of those
messages. The above, smaller error boxes are the more precise ones.