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Passive communications satellite
Category of spacecraft.



Subtopics

Echo American passive communications satellite. The Echo satellites were NASA's first experimental communications satellite project.

Westford Needles American passive communications satellite. In an attempt to lay a radio-reflective ring around the world, small metal dipole needles were allowed to sublimate out of a matrix. Experimental, communication, passice satellite for MIT Lincoln Laboratory, USA. Launched 1961-1963.

Echo 2 American passive communications satellite. Passive communications satellite; balloon; 1st joint US/USSR space mission.



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