More than 20 states that produce more than half of world's oil take part in OPEC meetingBusiness & Economy December 10, 13:05
Russian energy minister Novak sees 'no risk' OPEC agreement failsBusiness & Economy December 10, 12:43
Defense ministry organizes mass escape for Aleppo civilians via humanitarian corridorsWorld December 10, 12:38
Almost 18,000 civilians evacuated from areas of Aleppo controlled by militantsWorld December 10, 7:41
Russian swimmers win 11 sets of medals at FINA World Swimming Championships (25 m)Sport December 10, 7:00
Shiveluch volcano in Russia’s Far East spews ash to 11 km in airWorld December 10, 5:28
Ceasefire agreements enter into force near Damascus, in Idlib province ― mediaWorld December 10, 4:18
Russian pair Tarasova/Morozov win final of ISU Grand Prix of Figure Skating in MarseillesSport December 10, 4:00
Matviyenko to visit UAE to participate in Forum of Women Speakers of ParliamentRussian Politics & Diplomacy December 10, 3:21
MOSCOW, December 9. /TASS/. The Russian military satellite Kanopus-ST that burnt in the atmosphere several days after its launch into orbit had no back-up system of unlocking from the Volga upper stage, a source in the Russian rocket and space industry told TASS on Wednesday.
"The developers of the technical documentation didn’t envisage an emergency algorithm in the event that the charge-driven piston mechanism would not unlock. Naturally, the developers should have introduced the satellite’s forced mechanical separation from the acceleration unit, despite the presence of the back-up channels of transmitting commands to pyro cartridges," the source said.
The Soyuz-2.1v carrier rocket with two military satellites was launched from the Plesetsk spaceport in northern Russia on December 5.
The Russian Defense Ministry’s press service reported that the spacecraft were successfully placed on the target orbits. However, on December 6, a number of media reports suggested that the launch failed - one of the satellites did not separate from the Volga upper stage. A source in the Russian Aerospace Force headquarters told TASS that the preliminary cause of the contingency had been established - one of the four locks holding the Kanopus ST satellite failed during the separation sequence and ground controllers were unable to contact the craft and re-issue the separation command.
The satellite burnt in the dense layers of the Earth’s atmosphere on December 8.
The launch of the Kanopus-ST satellite was the second for the Soyuz-2.1v carrier rocket whose design tests are ongoing in Plesetsk.
The Soyuz-2.1v carrier rocket was for the first time launched in December 2013.
Russia spent 15 years on developing the Kanopus-ST satellite, of which 10 years were spent on preparing the satellite’s onboard equipment.