TITLE: GCN CIRCULAR NUMBER: 2127 SUBJECT: IPN triangulation of GRB030406 (small error box) DATE: 03/04/10 01:21:11 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 and GRS), INTEGRAL (SPI-ACS) and Konus-Wind observed this GRB at 81727 seconds. As observed by Ulysses, it had a duration of approximately 65 seconds, a 25-100 keV fluence of approximately 1.3E-05 erg/cm2, and a peak flux of approximately 1.0E-06 erg/cm2 s over 0.25 seconds. We have triangulated it a preliminary, 3 sigma error box with approximate area 77 square arcminutes whose coordinates are: RA(2000) DEC(2000) 19 h 1 m 43.00 s -68 o 4 ' 39.37 " (CENTER) 19 h 1 m 20.54 s -68 o 5 ' 15.94 " (CORNER) 19 h 3 m 6.15 s -68 o 20 ' 11.99 " (CORNER) 19 h 0 m 22.64 s -67 o 48 ' 59.85 " (CORNER) 19 h 2 m 5.44 s -68 o 4 ' 2.57 " (CORNER) This error box may be improved.