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TITLE: GCN GRB OBSERVATION REPORT
NUMBER: 2378
SUBJECT: IPN triangulation of GRB030903 (large error box)
DATE: 03/09/04 17:39:07 GMT
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,
E. Mazets and S. Golenetskii, on behalf of the Konus-Wind GRB team, and
A. von Kienlin, G. Lichti, and A. Rau, on behalf of the INTEGRAL
SPI-ACS GRB team, report:
Ulysses, Mars Odyssey-HEND, Konus-Wind, and INTEGRAL (SPI-ACS)
observed this GRB at 56599 seconds. As observed by Ulysses, it had a
duration of approximately 4 seconds, a 25-100 keV fluence of
approximately 2E-07 erg/cm2, and a peak flux of approximately 2E-07
erg/cm2 s over 0.25 seconds.
We have triangulated it to a preliminary, 3 sigma error box with
approximate area 40000 square arcminutes whose coordinates are:
RA(2000) DEC(2000)
ERROR BOX CENTER: 19 h 50 m 39.16 s -44 o 20 ' 2.33 "
ERROR BOX CORNER 1: 19 h 52 m 33.12 s -45 o 33 ' 16.65 "
ERROR BOX CORNER 2: 20 h 9 m 57.61 s -52 o 1 ' 52.28 "
ERROR BOX CORNER 3: 19 h 42 m 1.51 s -36 o 9 ' 33.02 "
ERROR BOX CORNER 4: 19 h 48 m 59.33 s -43 o 6 ' 18.58 "
This error box may be improved, but as the Earth, Mars, and Ulysses are
practically aligned, a small error box cannot be derived for this
event.
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