TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1763 SUBJECT: IPN triangulation of GRB021215 (large error box) DATE: 02/12/17 21:42:11 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley, on behalf of the Ulysses 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: Ulysses and Konus-Wind observed this GRB at 15330 seconds. As observed by Ulysses, it had a duration of approximately 3 seconds, a 25-100 keV fluence of approximately 5.1E-06 erg/cm2, and a peak flux of approximately 7.1E-07 erg/cm2 s over 0.50 seconds. We have triangulated it to a preliminary annulus centered at RA, Decl(2000)= 182.924, 36.123 degrees, whose radius is 82.118 +/- 0.017 degrees (3 sigma). The Konus ecliptic latitude response constrains the arrival direction to a band between ecliptic latitudes -50 and -30 degrees, that is, to those portions of the annulus south of RA, Decl= 109, -8 degrees and 206, -43 degrees. 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.