Russia Lost All Its Early-Warning Satellites

Filed under: riflessioni — Paolo Porsia @ 12:55 AM

Fortuna's Corner

Russia Lost All Its Early-Warning Satellites

Two satellites of the old US-KS/Oko system that until recently maintained some coverage of ballistic missile launches, stopped functioning some time in the fall of 2014, leaving Russia without space-based tier of the early-warning system. Cosmos-2422 (29260, launched in July 2006) failed to perform an orbit correction maneuver due in September 2014. Cosmos-2446 (33447, December 2008) also failed in September-October 2014 and is currently drifting off its working orbit. The Kommersant newspaper, which first reported the news, appears to have an independent confirmation of the satellites’ demise.

Here is how it looks like on a chart that shows evolution of the satellites mean motion (revolutions a day):


These two satellites were old satellites of the 73D6 type that were deployed on highly-elliptical orbits and worked as part of the US-KS system to provide Russia with a capability to detect ballistic missile…

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