TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1667 SUBJECT: IPN triangulation of GRB021102 (annulus) DATE: 02/11/03 16:55:53 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley, on behalf of the Ulysses GRB team, T. Cline, on behalf of the Ulysses and Konus GRB teams, and E. Mazets and S. Golenetskii, on behalf of the Konus GRB team, report: Ulysses and Konus-Wind observed this GRB at 57512 seconds. As observed by Ulysses, it had a duration of approximately 10 seconds, a 25-100 keV fluence of approximately 4.1E-06 erg/cm2, and a peak flux of approximately 6.1E-07 erg/cm2 s over 0.50 seconds. We have triangulated it to a preliminary annulus centered at RA, Decl(2000)= 359.805, -35.389 degrees, whose radius is 59.486 +/- 0.044 degrees (3 sigma ). This annulus may be constrained and/or improved. It is not known at this point whether this event was observed by Mars Odyssey, and thus whether a small error box can be derived for it.