SpaceNews:



Lockheed Martin received a $1 billion contract to operate and maintain the ground control systems of the U.S. military’s Space Based Infrared System geostationary satellites, the U.S. Space Force announced June 4.

SBIRS is part of the Defense Department’s missile warning network that detects ballistic missile launches. It includes a combination of two infrared sensors in highly elliptical orbit and five satellites in geosynchronous Earth orbit.

Lockheed Martin has been the SBIRS primary contractor since the mid-1990s. The fifth satellite launched May 18. The sixth and final SBIRS is in production and projected to launch in 2022…



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