The problem-plagued Zenit launch vehicle returned to flight on Saturday with the successful launch of the Israeli Amos-4 communications satellite from the Baikonur Cosmodrome in Kazakhstan. The 3.5-ton satellite, which was built by Israel Aerospace Industries for Israeli operator Spacecom, will deliver Ka- and Ka-band communications to the portions of the Middle East, Russia and south and east Asia.
This is the first successful flight of the rocket since the failure of a Sea Launch Zenit-3SL on Feb. 1. The launch vehicle crashed into the Pacific Ocean shortly after take-off when its first stage failed, taking the Intelsat 27 satellite down with it.
The Zenit launch vehicle, which has a success rate of just over 85 percent, was originally intended for multiple uses. Four Zenits were attached to the core of the giant Energia launch system designed to lift the Buran space shuttle into orbit. Zenits were also designed to fly separately as a replacement for the Soyuz booster for manned flights and as a satellite launcher.