[SatNews] The U.S. Air Force/Lockheed Martin [NYSE: LMT]-led Space Based Infrared System (SBIRS) team has successfully completed the Final Integrated System Test (FIST) of the first geosynchronous (GEO-1) satellite.

This is a major program milestone that verifies the spacecraft's performance and functionality in preparation for delivery to the launch site. Having conducted all system environmental testing and now with the completion of FIST, SBIRS GEO-1 is on track to meet its scheduled spring 2011 launch aboard an Atlas V launch vehicle from Cape Canaveral Air Force Station, Florida. The SBIRS Highly Elliptical Orbit (HEO) payloads have already been launched and are meeting or exceeding all performance requirements. The launch of GEO-1 will significantly enhance the nation’s early missile warning capabilities and simultaneously support other critical national security missions including missile defense, technical intelligence and battlespace awareness.

On the path to spacecraft delivery, the SBIRS team will complete final space to ground interface system testing, perform final spacecraft component installations, and conduct a final factory confidence test. Qualification of the satellite's flight software, designed to provide highly reliable command and control operations, is also progressing steadily. The team recently completed all 138 Engineering Dry Runs (EDR), a key milestone in the flight software qualification regimen, and is on track to complete the spacecraft’s comprehensive flight software qualification testing program early next year. The SBIRS team is led by the Infrared Space Systems Directorate at the U.S. Air Force Space and Missile Systems Center. Lockheed Martin is the SBIRS prime contractor, with Northrop Grumman, as the payload integrator. Air Force Space Command operates the SBIRS system. Lockheed Martin's original SBIRS contract includes HEO payloads, two geosynchronous orbit (GEO) satellites, as well as ground-based assets to receive and process the infrared data. The team is also under a follow-on production contract to deliver additional HEO payloads, third and fourth GEO satellites, and associated ground modifications.