space-object detection and tracking system

Space-object detection and tracking systems are crucial for monitoring objects orbiting Earth. These systems primarily utilize large radars, including advanced phased-array types with electronically steerable beams for rapid scanning and simultaneous tracking of multiple objects. To supplement radar, telescopes are employed for precise tracking of satellites, particularly those in lower Earth orbits.1

These systems are vital for national security, with governments using spy satellites to observe foreign military activities. They also play a role in tracking space debris, which includes defunct satellites and rocket stages. The U.S. Space Surveillance Network tracks thousands of pieces of debris larger than 10 cm, with millions more smaller pieces estimated to exist. Collisions with even small debris can damage or destroy spacecraft, posing a significant risk to spaceflight. Efforts are underway to mitigate this problem, including deorbiting satellites at the end of their missions and testing technologies for debris removal.234