A technical problem on the second stage (Briz-M) of the Proton-M to compromise the orbit of communications satellites of the Republic of Belarus spacecraft Express-MD2 and Telkom-3.
August 7 during the breeding parent block (RB, the Briz-M spacecraft and 2) was not detected in the transfer orbit. The signal from the headunit (GB) was adopted with an emergency intermediate orbit.
According to preliminary information, the inclusion of cruise propulsion system (PS), RB, the was the estimated time. Shutdown control occurred in 7 seconds instead of the estimated 18 minutes 5 seconds.
GB means accompanied by Air Troops and Space Defense and Space Agency. Conducted an analysis of the situation.
Original text in Russian: http://www.federalspace.ru/main.php?id=2&nid=19396
Images, Text, Credits: Press Service of the Russian Space Agency (Roscosmos PAO) / Khrunichev / Translation: Orbiter.ch.