Lockheed Martin‘s Space-Based Infrared System (SBIRS) geosynchronous orbit (GEO-1) satellite has completed baseline integrated system testing of new flight software that enables command and control operations.
    The flight software used during the testing contains applications that control space vehicle electrical power, temperature, attitude and navigation. Testing of the GEO-1 spacecraft was conducted from Jan. 2 to Jan. 27 at Lockheed Martin’s Space Systems facilities in Sunnyvale, Calif.
    Lockheed Martin is under contract with the U.S. Air Force to build SBIRS. The contract includes the two HEO payloads now in orbit, two GEO satellites and ground-based assets to receive and process the infrared data.
    Delivery of the final flight software block is planned for February to support thermal vacuum testing. The spacecraft is planned for delivery to the Air Force in fiscal year 2010 in preparation for launch aboard an Atlas 5 launch vehicle.

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