general/communications-satellite-constellations
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Tracking and Data Relay Satellite System (1)
European Data Relay System (1)
Galaxy (satellite) (1)
O3b (1)
Tracking and Data Relay Satellite System
Network of American communications satellites
European Data Relay System
Group of communication satellites
Galaxy (satellite)
Family of communications satellites operated by Intelsat
O3b
Group of telecommunications satellites