An abnormal situation arose when refueling the Fregat booster with compressed gases and an oxidizer. This Monday morning, November 20, told RIA Novosti in the RSC Energia,. Most likely, the problem is related to one of the valves of the apparatus.

The commission, which included specialists from RSC Energia, Lavochkin, where they developed this overclocking unit, and Roskosmos corporation have already developed a plan for troubleshooting. Now it is gentle to understand how the state of emergency will strike the schedule of launches from Baikonur. The broken "Fregat" was supposed to deliver into orbit the first ever Angolan satellite, "Angosat", which is intended to provide television broadcasting and mobile communications in the territory of the Republic of Angola and the entire African continent. The Russian-Angolan contract was signed back in 2009.

, but was delayed, as it had to change the electronic components of the spacecraft.

Now, "Angosat" is fully ready to dock with the "Frigate". The carrier rocket "Zenith-2" also passed the preflight training and waits for the team to start. However, because of the emergency, the exact date of launch of the satellite has not yet been determined. The "Fregat" upper stage was first launched in 2000. Its weight after refueling is 6635 kg. The thrust of the engine reaches 2 tons. Can be used in medium-and heavy-duty carrier rockets.