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Discoverer 1

retired

Technology DemonstrationLEOCOSPAR 1959 BETLaunched 2/28/1959

Mission & Launch

Launch Mission: Discoverer 1
Launch Vehicle: Thor Agena A
Launch Date: 2/28/1959
Last Contact: 2/28/1959

Orbit & Mass

Orbit Class: LEO
Altitude: 565.5 km
Inclination: 89.7 deg
Dry Mass: 78 kg
Total Mass: 668 kg

Payload Classification

Mission Type: Technology Demonstration
Payload Category: TECH
Payload Class: D

Organizations

Operator: U.S. Defense Advanced Research Projects Agency (DARPA)
Manufacturer: Lockheed Martin

Registry

COSPAR ID: 1959 BET