TITLE: GCN CIRCULAR NUMBER: 16443 SUBJECT: Konus-Wind observation of GRB 140619A DATE: 14/06/23 16:41:20 GMT FROM: Dmitry Svinkin at Ioffe Institute S. Golenetskii, R.Aptekar, D. Frederiks, V. Pal'shin, P. Oleynik, M. Ulanov, D. Svinkin, A. Tsvetkova, A. Lyssenko, and T. Cline on behalf of the Konus-Wind team, report: The long GRB 140619A (Swift-BAT trigger #602080: De Pasquale, et al., GCN Circ. 16415, Palmer, et al., GCN Circ. 16423) was detected by Konus-Wind in the waiting mode. The burst light curve shows a single multipeak episode started at ~T0(BAT)+35 s with a duration of ~340 s. The K-W light curve of this burst is available at http://www.ioffe.ru/LEA/GRBs/GRB140619A/ As observed by Konus-Wind, the burst had a fluence of 5.4(-0.5,+0.2)x10^-5 erg/cm2 and a 2.944-s peak energy flux, measured from ~T0(BAT)+191 s, of 1.5(-0.3,+0.2)x10^-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range). Modeling the K-W 3-channel time-integrated spectrum (from T0(BAT)+35 s to T0(BAT)+374 s) by a power law with exponential cutoff model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) yields alpha = -1.3 ± 0.1, and Ep = 236 (-27,+33) keV. All the quoted errors are estimated at the 1 sigma confidence level. All the presented results are preliminary.