TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1673 SUBJECT: SGR1900+14 activity, November 2-4, 2002 DATE: 02/11/04 21:50:47 GMT FROM: Evgeny Mazets at Ioffe Physico Technical Inst E. Mazets, S. Golenetskii, R. Aptekar, D. Frederiks and V. Palshin on behalf of the Konus-Wind and Helicon-Coronas-F GRB teams, and T. Cline, on behalf of the Konus GRB teams, K. Hurley and T. Cline, on behalf of the Ulysses GRB team, report: Recently, increasing of SGR 1900+14 activity was detected by Ulysses, Konus-Wind, Helicon-Coronas-F (GCNs 1643, 1655, 1665). In the begining of November, Konus-Wind, and Helicon observed a number of SGR-like trigger bursts: data time 1 021102 15415 s UT (Konus-Wind) 2 021102 18298 s UT (Helicon) 3 021102 23998 s UT (Konus-Wind, Helicon) 4 021104 19157 s UT (Konus-Wind, Helicon) As observed by Konus-Wind, they had durations 0.1-0.5 s, fluences of ~5 - 7E-6 erg/cm2, and peak fluxes over 8 ms of ~ 3 - 5E-5 erg/cm2 s. After the initial burst of event 3 (021102 23998 s UT), a cluster of short bursts was detected during ~10 minutes (both by Konus-Wind and Helicon). We have triangulated two of these bursts to annuli centered at: 021102 23998 s UT RA = 357.97, Decl = -4.73 deg, radius 72.0 +/- 1.2 deg 021104 19157 s UT RA = 14.19, Decl = 1.42 deg, radius 87.0 +/- 0.5 deg These annuli pass through SGR1900+14. Both, Konus-Wind and Helicon detected many SGR-like bursts on November, 2 in the background mode. These data confirm that SGR 1900+14 has entered a new phase of high activity (see also GCNs 1664, 1666).