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Rhyolite 4



Rhyolite 4 was a US Air Force electronic intelligence satellite launched from Cape Canaveral aboard an Atlas Agena-D rocket. It was placed in a geosynchronous earth orbit.

Alternate Names

  • 10787
  • Rhyolite4

Facts in Brief

Launch Date: 1978-04-07
Launch Vehicle: Atlas-Agena
Launch Site: Cape Canaveral, United States
Mass: 700 kg

Funding Agency

  • Department of Defense-Department of the Air Force (United States)


  • Surveillance and Other Military

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

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