TITLE: GCN CIRCULAR NUMBER: 9595 SUBJECT: Konus-Wind observation of GRB 090626 DATE: 09/06/29 14:12:22 GMT FROM: Valentin Pal'shin at Ioffe Inst S. Golenetskii, R.Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, P. Oleynik, M. Ulanov, and D. Svinkin on behalf of the Konus-Wind and Konus-RF teams, and T. Cline on behalf of the Konus-Wind team, report: The long bright GRB 090626 localized by IPN and Fermi/LAT (Golenetskii et al., GCN 9588; Piron et al., GCN 9584; corresponding to the Fermi/GBM trigger 267683530: von Kienlin, GCN 9579) triggered Konus-Wind at T0(KW)=16330.962 s UT (04:32:10.962) and Konus-RF at T0(KRF)=16332.013 s UT (04:32:12.013). The burst light curve shows a multipeaked structure with a duration of ~60 s As observed by Konus-Wind the burst had a fluence of 7.78(-1.01, +0.91)x10^-5 erg/cm2, and a 64-ms peak flux measured from T0+21.056 s of 1.41(-0.25, +0.24)x10^-5 erg/cm2/s (both in the 20 keV - 7 MeV energy range). The time-integrated spectrum of the burst (from T0 to T0+61.696 s) can be fitted (in the 20 keV - 7 MeV range) by GRB (Band) model for which: the low-energy photon index alpha = -1.26(-0.08, +0.09), the high energy photon index beta = -2.43(-0.54, +0.20), the peak energy Ep = 202(-24, +29) keV (chi2 = 98.7/78 dof). All the quoted errors are at the 90% confidence level. The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB090626_T16332/