Ctrl K

© Polaris Intelligence 2026

Privacy Terms Admin

Injun I

retired

Science ExplorationLEOCOSPAR 1961 OMI 2Launched 6/29/1961

Mission & Launch

Launch Mission: Transit 4A/GRAB
Launch Vehicle: Thor Ablestar
Launch Date: 6/29/1961
Last Contact: 3/6/1963

Orbit & Mass

Orbit Class: LEO
Altitude: 939 km
Inclination: 66.82 deg
Dry Mass: 18 kg
Total Mass: 43 kg

Payload Classification

Mission Type: Science Exploration
Payload Category: SCI
Payload Class: C

Organizations

Operator: Office of Naval Research
Manufacturer: University of Iowa

Registry

COSPAR ID: 1961 OMI 2
UN Registration: A/AC.105/INF.001