About National Intelligence Organizations Products Missions Vehicles Spacecraft Constellations Forecasts Latest Information

© Polaris Intelligence 2026Admin

SR X

retired

Launched 7/8/1971

Technical Specifications

Verified technical details

Dry Mass: 119 kg
Total Mass: 119 kg
Power: Unknown
Design Life: Unknown

Stakeholders

Operator

U.S. Naval Research Lab

Manufacturer

U.S. Naval Research Lab

Launch Mission

Explorer 44

7/8/1971