TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2296 SUBJECT: IPN triangulation of GRB030711 (annulus, =SGR0525-66?) DATE: 03/07/11 18:11:13 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley and T. Cline, on behalf of the Ulysses 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, and A. von Kienlin, G. Lichti, and A. Rau, on behalf of the INTEGRAL SPI-ACS GRB team, report: Mars Odyssey (HEND and GRS) and INTEGRAL (SPI-ACS) observed this burst at 00243 seconds. As observed by INTEGRAL, it had a duration of approximately 0.5 s. We have triangulated it to a preliminary annulus centered at RA, Decl (2000)=341.562, -13.235 degrees, whose radius is 81.798 +/- 0.093 degrees (3 sigma). We note that this annulus includes the position of SGR0525-66, although the probability that this could occur by chance is not negligible. As this burst was not observed by Ulysses, a small error box cannot be obtained for it, but if it was observed by other near-Earth spacecraft, it may be possible to obtain an error box for it. The non-detection by Ulysses implies that this event had a hard spectrum.