Ctrl K

© Polaris Intelligence 2026

Privacy Terms Admin

Discoverer 30

retired

Earth ObservationLEOCOSPAR 1961 OME 1Launched 9/12/1961

Mission & Launch

Launch Mission: Discoverer 30
Launch Vehicle: Thor Agena B
Launch Date: 9/12/1961
Last Contact: 9/14/1961

Orbit & Mass

Orbit Class: LEO
Altitude: 357.5 km
Inclination: 82.66 deg
Dry Mass: 144 kg
Total Mass: 1,124 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: 1961 OME 1