Ctrl K

© Polaris Intelligence 2026

Privacy Terms Admin

SSU 1 (1976-038C)

retired

Signals IntelligenceLEOCOSPAR 1976-038CLaunched 4/30/1976

Mission & Launch

Launch Mission: OPS 6431 [NOSS1]
Launch Vehicle: Atlas F
Launch Date: 4/30/1976
Last Contact: 1/1/1980

Orbit & Mass

Orbit Class: LEO
Altitude: 1,110.5 km
Inclination: 63.44 deg
Dry Mass: 200 kg
Total Mass: 200 kg

Payload Classification

Mission Type: Signals Intelligence
Payload Category: SIG
Payload Class: D

Organizations

Operator: U.S. National Reconnaissance Office (NRO)
Manufacturer: U.S. Naval Research Lab

Registry

COSPAR ID: 1976-038C
UN Registration: A/AC.105/INF.349