The first Lockheed Martin-built Space Based Infrared System (SBIRS) geosynchronous (GEO-1) spacecraft beamed down its first infrared image on June 21 to the SBIRS ground station. Following its May 7 launch, the satellite is performing as expected, and is now undergoing early orbit testing.
Troubled Space-Based Infrared Satellite Program Finally Gets Off the Ground
June 16, 2011.jpg)
SBIRS-High and SBIRS-Low.
At one time the two missile defense satellite systems were notorious examples of over budget, technologically challenged military space programs.
SBIRS — space-based infrared systems — was conceived in the early 1990s as the next-generation of spacecraft that could not only warn when intercontinental or theater ballistic rockets were being launched, but track them accurately enough to possibly shoot them down with a missile defense system.
Air Force’s First Dedicated SBIRS Satellite Carried to Orbit
May 10, 2011The U.S. Air Force successfully launched its first Space Based Infrared System (SBIRS) geosynchronous missile warning satellite May 7 aboard an Atlas 5 rocket from Cape Canaveral Air Force Station, Fla., the service announced May 7.

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Missile Defense Advocacy Alliance