EU Space Surveillance and Tracking network

Target entity: EU Space Surveillance and Tracking network
Context triple: [German Space Situational Awareness Centre, collaboratesWith, EU Space Surveillance and Tracking network]

• A. United States Space Surveillance Network
  The United States Space Surveillance Network is a U.S. military-operated system of ground- and space-based sensors that tracks and catalogs artificial objects in Earth orbit to support space situational awareness and national security.
• B. Space-Based Space Surveillance system
  The Space-Based Space Surveillance system is a U.S. military satellite constellation designed to detect, track, and catalog objects in Earth orbit to enhance space situational awareness and support space operations.
• C. Canadian Space Surveillance System
  The Canadian Space Surveillance System is a national space-based monitoring network designed to track and catalog objects in Earth's orbit for defense, security, and space situational awareness.
• D. Space Fence space surveillance system
  The Space Fence space surveillance system is a U.S. Air Force-operated, Lockheed Martin–built radar network designed to track and catalog objects in Earth orbit with unprecedented precision.
• E. ESA ESTRACK network
  The ESA ESTRACK network is the European Space Agency’s global system of ground tracking stations that supports communication with and control of its spacecraft and missions.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: EU Space Surveillance and Tracking network
Target entity description: The EU Space Surveillance and Tracking network is a European collaborative system that monitors and analyzes objects in space to enhance the safety and security of satellites and space operations.

• A. United States Space Surveillance Network
  The United States Space Surveillance Network is a U.S. military-operated system of ground- and space-based sensors that tracks and catalogs artificial objects in Earth orbit to support space situational awareness and national security.
• B. Space-Based Space Surveillance system
  The Space-Based Space Surveillance system is a U.S. military satellite constellation designed to detect, track, and catalog objects in Earth orbit to enhance space situational awareness and support space operations.
• C. Canadian Space Surveillance System
  The Canadian Space Surveillance System is a national space-based monitoring network designed to track and catalog objects in Earth's orbit for defense, security, and space situational awareness.
• D. Space Fence space surveillance system
  The Space Fence space surveillance system is a U.S. Air Force-operated, Lockheed Martin–built radar network designed to track and catalog objects in Earth orbit with unprecedented precision.
• E. ESA ESTRACK network
  The ESA ESTRACK network is the European Space Agency’s global system of ground tracking stations that supports communication with and control of its spacecraft and missions.
• F. None of above. chosen