TITLE: GCN CIRCULAR NUMBER: 11515 SUBJECT: Konus-Wind observation of GRB 110102A DATE: 11/01/03 15:46:18 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 GRB 110102A, (Swift/BAT trigger=441454: Oates, et al., GCN 11509; Sakamoto et.al, GCN 11511) triggered Konus-Wind at T0=68074.462s UT (18:54:34.462) The burst light curve consists of three major pulses, first two of them are much harder than the third one. The total duration of the burst is ~160 s. The emission is seen up to ~5 MeV. The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB110102_T68074/ As observed by Konus-Wind the burst had a fluence of (5.4 ± 0.9)x10-5 erg/cm2, and a 256-ms peak flux, measured from T0+76.032s, of (4.9 ± 0.8)x10-6 erg/cm2/s (both in the 20 keV - 5 MeV energy range). The time-integrated spectrum of the burst (from T0 to T0+164.096 s) is best fit in the 20 keV - 5 MeV range by the GRB (Band) model, for which: the low-energy photon index alpha = -1.22 (-0.16, +0.26), the high energy photon index beta = -2.3 (< -0.9), the peak energy Ep = 267(-91, +111) keV, chi2 = 65/76 dof. The spectrum at the maximum count rate (measured from T0+73.984 to T0+82.176 s) is best fit in the 20 keV - 5 MeV range by the GRB (Band) model, for which: the low-energy photon index alpha = -1.14 (-0.12, +0.15), the high energy photon index beta = -2.2 (-3.1, +0.3), the peak energy Ep = 436(-122, +180) keV, chi2 = 57/76 dof. All the quoted results are preliminary. All the quoted errors are at the 90% confidence level.