About National Intelligence Organizations Products Missions Spacecraft Latest Information

© Polaris Intelligence 2026Admin

USA 53

retired

Orbit: LEOLaunched 2/28/1990

Technical Specifications

Verified technical details

Dry Mass: 12000 kg
Total Mass: 16900 kg
Power: Unknown
Design Life: Unknown

Stakeholders

Operator

U.S. National Reconnaissance Office (NRO)

Manufacturer

Lockheed Martin

Launch Mission

USA 53 [MST1]

2/28/1990