Injun (satellite)
Program details
Columns: Name | Launched | Vehicle | Ceased operation | Notes
Injun 1 | June 29, 1961 | Thor-Able | March 6, 1963 | Failed to separate from Solrad 3; still in orbit | Injun 2 | January 24, 1962 | Thor-Able | failed at launch | Upper stage produced insufficient thrust | Injun 3 | December 12, 1962 | Thor-Agena | August 25, 1968 | Orbit decay and re-entry on August 25, 1968 | Injun 4 | November 21, 1964 | Scout X-4 | December 1966 | still in orbit | Injun 5 | August 8, 1968 | Scout X-4 | June 1971 | still in orbit[ citation needed ] | Injun 6 | June 3, 1974 | Scout X-4 | April 28, 1978 | main article: Explorer 52