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Class: Earth. Type: Atmosphere. Nation: USA. Agency: U.S. Air Force.
12 foot dia. balloon; atmospheric density studies.
Total Mass: 7 kg.
04 December 1960
Explorer (9) S 56 Program: Explorer. Launch Site: Wallops Island . Launch Vehicle: Scout X-1. FAILURE: Second stage malfunction. Mass: 6 kg.
16 February 1961
Explorer 9 Program: Explorer. Launch Site: Wallops Island . Launch Vehicle: Scout X-1. Mass: 7 kg. Perigee: 757 km. Apogee: 2,433 km. Inclination: 38.8 deg.
12 foot dia. balloon; atmospheric density studies. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).
- 126 - Bramscher, Robert G, Spaceflight, "A Survey of Launch Vehicle Failures", 1980, Volume 22, page 351.
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Last update 12 March 2001.
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© Mark Wade, 2001 .