TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1707 SUBJECT: IPN triangulation of GRB021125 (INTEGRAL BURST) DATE: 02/11/26 19:43:26 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley and T. Cline, on behalf of the Ulysses 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, and D. M. Smith, R. P. Lin, J. McTiernan, R. Schwartz, C. Wigger, W. Hajdas, and A. Zehnder, on behalf of the RHESSI GRB team, report: Ulysses, Mars Odyssey-HEND, and RHESSI observed this GRB (GCN1706) at 64710 seconds. As observed by Ulysses, it had a duration of approximately 30 seconds, a 25-100 keV fluence of approximately 8.7E-06 erg/cm2, and a peak flux of approximately 7.8E-07 erg/cm2 s over 0.50 seconds. We have triangulated it to a preliminary, 3 sigma error box whose approximate area is 111. sq. arcmin. and whose coordinates are: RA(2000) DEC(2000) ERROR BOX CENTER: 19 h 47 m 42.76 s 28 o 17 ' 8.06 " ERROR BOX CORNER 1: 19 h 46 m 49.27 s 28 o 9 ' 14.20 " ERROR BOX CORNER 2: 19 h 47 m 47.73 s 28 o 13 ' 9.68 " ERROR BOX CORNER 3: 19 h 47 m 37.78 s 28 o 21 ' 6.43 " ERROR BOX CORNER 4: 19 h 48 m 36.40 s 28 o 25 ' 0.85 " Assuming that the INTEGRAL-IBIS localization is a circle with 30 arcminute radius, this error box lies entirely within it and reduces its area by a factor of about 25. An image will be posted shortly at ssl.berkeley.edu/ipn3/021125. This error box may be improved.