TITLE: GCN CIRCULAR NUMBER: 14250 SUBJECT: Konus-Wind observation of GRB 130219A DATE: 13/02/22 11:01:58 GMT FROM: Dmitry Frederiks at Ioffe Institute S. Golenetskii, R.Aptekar, D. Frederiks, E. Mazets, V. Pal'shin, P. Oleynik, M. Ulanov, D. Svinkin, and T. Cline on behalf of the Konus-Wind team, report: The long-duration intense GRB 130219A (Fermi GBM detection: Collazzi, GCN 14243; IPN detection and localization: Hurley et al., GCN 14246) triggered Konus-Wind at T0=66950.352.048s UT (18:35:50.352) The burst started with a soft precursor at ~T0-0.5s which was followed, after ~65 sec of quiescence, by a harder intense emission pulse. A total duration of the burst is ~117 s. The emission in the main emission episode is seen up to ~8 MeV. As observed by Konus-Wind, the burst had a fluence of (4.2 ± 0.4)x10-5 erg/cm2, and a 64-ms peak flux, measured from T0+81.152 s, of (2.4 ± 0.2)x10-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range). The energy spectrum of the precursor (measured T0 to T0+8.444 s) is best fit in the 20 keV - 2 MeV range by a power law with exponential cutoff model, for which: alpha = +0.11 ± 0.45, and Ep = 95 ± 8 keV, chi2 = 57.2/60 dof. The time-integrated spectrum of the main emission episode (measured T0+67.792 to T0+105.984 s) is best fit in the 20 keV - 15 MeV range by the GRB (Band) function with the following model parameters: the low-energy photon index alpha = -1.08 ± 0.07, the high energy photon index beta = -2.12 ± 0.11, the peak energy Ep = 280 ± 35 keV, chi2 = 90.8/96 dof. The spectrum at the maximum count rate (measured T0+79.984 to T0+81.408 s) is best fit in the 20 keV - 15 MeV range by the GRB (Band) function with the following model parameters: the low-energy photon index alpha = -1.10 ± 0.05, the high energy photon index beta = -3.1 ± 0.2, the peak energy Ep = 365 ± 15 keV, chi2 = 81.3/97 dof. The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB130219_T66950/ All the quoted results are preliminary.