TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1655 SUBJECT: IPN triangulation of SGR1900+14, October 22 2002 DATE: 02/10/25 16:07:38 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley, on behalf of the Ulysses GRB team, E. Mazets, S. Golenetskii, and D. Frederiks, on behalf of the Konus-Wind and Helicon GRB teams, and T. Cline, on behalf of the Ulysses and Konus GRB teams, report: Ulysses, Konus, and Helicon observed this burst at 33860 s. As observed by Ulysses, it had a duration of ~32 ms, a 25-100 keV fluence of ~2E-7 erg/cm2, and a peak flux over 32 ms of ~6E-6 erg/cm2 s. We have triangulated it to a preliminary annulus centered at RA, Decl= 358.067, -35.896 degrees, whose radius is 80.722 +/- 0.044 degrees. As the center line of this annulus passes within 0.038 degrees of SGR1900+14, we conclude that this event originated from that source. The Ulysses time history shows evidence of precursor activity, as well as hints of activity following the burst, suggesting that SGR1900+14 may be entering a new active phase (see GCN 1643).