Category
page 1Radar networks
EISCAT
right|thumb|EISCAT Kiruna Radar (diameter 32m)
Haystack Observatory
astronomical observatory
United States Space Surveillance Network
network feeding orbital data to the United States Space Command
Space Situational Awareness Programme
European Space Agency program
TIRA
The Tracking & Imaging Radar (TIRA) system serves as the central experimental facility for the development and investigation of radar techniques for the detection and reconnaissance of objects in space, and (to a certain degree) of air targets.
Amazon Surveillance System
surveillance system used for monitoring Amazônia Legal
Super Dual Auroral Radar Network
thumb|right|A SuperDARN radar site located in Saskatoon, [[Canada]]