TITLE: GCN CIRCULAR NUMBER: 1683 SUBJECT: IPN triangulation of GRB021108 (large error box) DATE: 02/11/12 17:21:49 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley, on behalf of the Ulysses GRB team, D. M. Smith, R. P. Lin, J. McTiernan, R. Schwartz, C. Wigger, W. Hajdas, and A. Zehnder, on behalf of the RHESSI GRB team, E. Mazets and S. Golenetskii, on behalf of the Konus-Wind GRB team, and T. Cline, on behalf of the Ulysses and Konus GRB teams, report: This event (GCN 1679) was also observed by RHESSI. Triangulation, RHESSI Earth-blocking, and the Konus ecliptic latitude response constrain the annulus (RA, Decl(2000)=0.517, -35.271 degrees, radius 47.726 +/- 0.026 degrees, 3 sigma) to that portion between RA, Dec=296.8, -67.1 degrees, and 297.4, -46.5 degrees. Only minor improvements to this localization are expected. As the Mars Odyssey spacecraft was in safe mode, with all instruments off, a small error box cannot be derived for this event.