Ctrl K

© Polaris Intelligence 2026

Privacy Terms Admin

OPS 4428

retired

Earth ObservationLEOCOSPAR 1975-114ALaunched 12/4/1975

Mission & Launch

Launch Mission: HEXAGON SV11
Launch Vehicle: Titan IIID
Launch Date: 12/4/1975
Last Contact: 4/1/1976

Orbit & Mass

Orbit Class: LEO
Altitude: 191 km
Inclination: 96.25 deg
Dry Mass: 6,099 kg
Total Mass: 10,744 kg

Payload Classification

Mission Type: Earth Observation
Payload Category: IMG
Payload Class: D

Organizations

Operator: U.S. National Reconnaissance Office (NRO)
Manufacturer: Lockheed Martin

Registry

COSPAR ID: 1975-114A
UN Registration: A/AC.105/INF.339