On December 2, 2008 at 08:00 MSK (05:00 UTC) the Space Forces conducted a successful launch of a Molniya-M rocket from the launch pad No. 2 of the launch complex No. 16 of the Plesetsk launch site. The launcher delivered into orbit a new early-warning satellite of the 73D6 type, which will work as part of the first-generation US-KS early-warning system (also known as Oko).

The satellite received a designation Cosmos-2446. Its international designation is 2008-062A, NORAD number - 33447. The satellite was deployed on a highly-elliptical orbit with inclination of 62.8 degrees and orbital period of about 702 minutes. Apogee of the initial orbit is about 39,000 km, perigee – about 600 km.

The satellite will join two other satellites of the US-KS/Oko constellation - Cosmos-2422 and Cosmos-2430. The new satellite is deployed in an orbital plane that is located between the orbital planes of these two satellites, which means that it will complement the constellation rather than replace one of the currently operational satellites.

In addition to the US-KS early-warning satellites Russia operates two satellites of the US-KMO system - Cosmos-2379 and Cosmos-2440, which are deployed on the geostationary orbit.