//////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1962 SUBJECT: IPN triangulation of GRB030325 (two small error boxes) DATE: 03/03/26 19:16:44 GMT FROM: Kevin Hurley at UCBerkeley/SSL 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. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1965 SUBJECT: IPN triangulation of GRB030325 (single small error box) DATE: 03/03/26 22:25:08 GMT FROM: Kevin Hurley at UCBerkeley/SSL 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. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1969 SUBJECT: IPN triangulation of GRB030325 (final analysis) DATE: 03/03/27 19:03:07 GMT FROM: Kevin Hurley at UCBerkeley/SSL 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.