A Russian Soyuz-ST-B rocket that on Thursday took off from the Kourou spaceport in French Guiana has injected four O3b communications satellites belonging to British operator O3b Networks into an interim orbit, said a spokesman for the Russian Federal Space Agency (Roscosmos).
"The Fregat upper stage and the four communications satellites have just detached from the third stage of the Soyuz-ST-B carrier rocket. The subsequent injection of the satellites into the final orbit will achieved via several activations of the service propulsion system of the Fregat," the spokesman told Interfax-AVN.
He said it would be about two and a half hours from takeoff to injection in the final orbit, which would have an altitude of about 7,830 kilometers.
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