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  2. Air Force Space Surveillance System - Wikipedia

    en.wikipedia.org/wiki/Air_Force_Space...

    A new Space Fence is envisioned to be a system of two or three S-band ground-based radars designed to perform uncued detection, tracking and accurate measurement of orbiting space objects. The Space Fence is intended to replace the Air Force Space Surveillance System, or VHF Fence, that was transferred from the U.S. Navy to the U.S. Air Force ...

  3. AN/TPQ-53 Quick Reaction Capability Radar - Wikipedia

    en.wikipedia.org/wiki/AN/TPQ-53_Quick_Reaction...

    AN/TPQ-53 Quick Reaction Capability Radar is a mobile active electronically scanned array counter-battery radar system manufactured by Lockheed Martin. The radar is specifically designed to locate the firing positions of both rocket and mortar launchers.

  4. Space Fence - Wikipedia

    en.wikipedia.org/wiki/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. [1] It was constructed and designed by Lockheed Martin , Northrop Grumman , and Raytheon starting in 2009, with it being declared operational in March 2020.

  5. United States Space Surveillance Network - Wikipedia

    en.wikipedia.org/wiki/United_States_Space...

    The FPS-80 was a tracking radar and the FPS-17 was a detection radar for Soviet missiles. Both were part of the Ballistic Missile Early Warning System . The large detection radar (AN/FPS-17) went into operation in 1960. In 1961, the AN/FPS-80 tracking radar was constructed nearby. These radars were closed in the 1970s.

  6. AN/MPQ-64 Sentinel - Wikipedia

    en.wikipedia.org/wiki/AN/MPQ-64_Sentinel

    In 2019, the U.S. Army selected Lockheed Martin to develop the active electronically scanned array (AESA) variant of the radar in a $281 million contract. [5] The Sentinel A4 is a complete redesign of the sensor that uses digital processing and solid-state antenna modules based on gallium nitride (GAN) transmitters.

  7. AN/FPS-117 - Wikipedia

    en.wikipedia.org/wiki/AN/FPS-117

    The AN/FPS-117 is an L-band active electronically scanned array (AESA) 3-dimensional air search radar first produced by GE Aerospace in 1980 and now part of Lockheed Martin. [1] [2] The system offers instrumented detection at ranges on the order of 200 to 250 nautical miles (370 to 460 km; 230 to 290 mi) and has a wide variety of interference and clutter rejection systems.

  8. AN/SPY-6 - Wikipedia

    en.wikipedia.org/wiki/AN/SPY-6

    The SPY-6 system consists of two primary radars and a radar suite controller (RSC) to coordinate the sensors. An S-band radar is to provide volume search, tracking, ballistic missile defense discrimination, and missile communications, while the X-band radar is to provide horizon search, precision tracking, missile communication, and terminal illumination of targets. [6]

  9. AN/APG-81 - Wikipedia

    en.wikipedia.org/wiki/AN/APG-81

    The AN/APG-81 is an active electronically scanned array (AESA) fire-control radar system designed by Northrop Grumman Electronic Systems (formerly Westinghouse Electronic Systems) for the Lockheed Martin F-35 Lightning II. [1] The AN/APG-81 is a successor radar to the F-22's AN/APG-77, and has an antenna composed of 1,676 transmit/receive modules.