Space Fence

The Space Fence is a second-generation space surveillance system operated by the United States Space Force in order to track artificial satellites and space debris in Earth orbit. It was constructed and designed by Lockheed Martin, Northrop Grumman, and Raytheon starting in 2009, with it being declared operational in March 2020. The budget is US$1.594 billion (FY15). The main facility is located at Kwajalein Atoll in the Marshall Islands.

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