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The Air Force Space Command-operated Defense Support Program (DSP) satellites are a key part of North America’s early warning systems.  In their 22,300-mile geosynchronous orbits, DSP satellites help protect the United States and its allies by detecting missile launches, space launches and nuclear detonations.


Defense Support Program

The Air Force Space Command-operated Defense Support Program (DSP) satellites are a key part of North America’s early warning systems. In their 22,300-mile geosynchronous orbits, DSP satellites help protect the United States and its allies by detecting missile launches, space launches and nuclear detonations.