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USA 253



A series of space surveillance satellites developed covertly by the Air Force and Orbital Sciences to provide a space-based capability operating in the near-geosynchronous orbit regime supporting U.S. Strategic Command space surveillance operations as a dedicated Space Surveillance Network (SSN) sensor.

According to USAF officials, the GSSAP satellites will drift above and below the GEO belt, using electro-optical sensors to collect information on satellites and other objects in that region. The satellites are maneuverable, allowing them to collect intelligence on specific target satellites. GSSAP provides “accurate tracking and characterization” of satellites.

Alternate Names

    Facts in Brief

    Launch Date: 2014-07-28
    Launch Vehicle: Delta IV
    Launch Site: Cape Canaveral, United States

    Funding Agency

    • United States Air Force Academy (United States)


    • Surveillance and Other Military

    Additional Information

    Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

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