TITLE: GCN CIRCULAR NUMBER: 13295 SUBJECT: Konus-Wind observation of GRB 120510A DATE: 12/05/14 15:05:19 GMT FROM: Valentin Pal'shin at Ioffe Inst S. Golenetskii, R.Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, P. Oleynik, M. Ulanov, D. Svinkin, and T. Cline on behalf of the Konus-Wind team report: The long GRB 120510A localized by MAXI/GSC (Serita et al., GCN 13282) was detected by Konus-Wind in the waiting mode. The burst light curve shows several pulses with a total duration of ~130 s. As observed by Konus-Wind, the burst had a fluence of (3.82 +/- 0.26)x10^-6 erg/cm2 (in the 20 - 1200 keV energy range). Fitting the K-W 3-channel time-integrated spectrum (from T0(MAXI)+5 s to T0(MAXI)+135 s) by a simple power-law model yields a power law index of 2.05 +/- 0.24. All the quoted errors are estimated at the 1 sigma confidence level. The K-W light curve of this burst is available at http://www.ioffe.rssi.ru/LEA/GRBs/GRB120510A/