GRB 030325
GCN Circular 1962
Subject
IPN triangulation of GRB030325 (two small error boxes)
Date
2003-03-26T19:16:44Z (22 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, 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,
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+GRS), INTEGRAL (SPI-ACS) and Konus-Wind
observed this GRB at 51310 seconds. As observed by Ulysses, it had a
duration of approximately 2 seconds, a 25-100 keV fluence of
approximately 1.5E-06 erg/cm2, and a peak flux of approximately
1.0E-06 erg/cm2 s over 0.50 seconds.
We have triangulated it to two preliminary, 3 sigma error boxes whose
approximate areas are 220 sq. arcmin. each and whose coordinates are:
RA(2000) DEC(2000)
4 h 43 m 6.76 s -19 o 6 ' 8.18 " (CENTER)
4 h 42 m 40.72 s -18 o 56 ' 52.00 " (CORNER)
4 h 46 m 17.63 s -19 o 57 ' 38.06 " (CORNER)
4 h 39 m 37.19 s -18 o 9 ' 1.66 " (CORNER)
4 h 43 m 32.36 s -19 o 15 ' 16.64 " (CORNER)
OR
RA(2000) DEC(2000)
3 h 40 m 50.29 s -1 o 21 ' 44.35 " (CENTER)
3 h 41 m 23.69 s -1 o 29 ' 5.72 " (CORNER)
3 h 37 m 50.12 s 0 o 30 ' 18.01 " (CORNER)
3 h 44 m 9.29 s -2 o 18 ' 46.98 " (CORNER)
3 h 40 m 17.33 s -1 o 14 ' 30.76 " (CORNER)
These error boxes may be improved, and it should be possible
to remove the ambiguity.
GCN Circular 1965
Subject
IPN triangulation of GRB030325 (single small error box)
Date
2003-03-26T22:25:08Z (22 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, 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,
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:
Further analysis of this burst (GCN 1962) indicates that the correct
error box is quite likely to be the first one, namely:
RA(2000) DEC(2000)
4 h 43 m 6.76 s -19 o 6 ' 8.18 " (CENTER)
4 h 42 m 40.72 s -18 o 56 ' 52.00 " (CORNER)
4 h 46 m 17.63 s -19 o 57 ' 38.06 " (CORNER)
4 h 39 m 37.19 s -18 o 9 ' 1.66 " (CORNER)
4 h 43 m 32.36 s -19 o 15 ' 16.64 " (CORNER)
Final confirmation of this is expected within 24 hours.
GCN Circular 1969
Subject
IPN triangulation of GRB030325 (final analysis)
Date
2003-03-27T19:03:07Z (22 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, 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,
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:
Final analysis of the Konus data for this burst (GCN 1962, 1965) confirms that
the correct error box is indeed the first one, as stated in GCN 1965.
Further improvements to this error box are possible.