This page no longer updated from 31 October 2001. Latest version can be found at IE

Class: Earth. Type: Ionosphere. Nation: USA. Agency: NASA.

Ionospheric research.


Total Mass: 44 kg.

IE Chronology

25 August 1964 Explorer 20 Program: Explorer. Launch Site: Vandenberg . Launch Vehicle: Scout X-4. Mass: 44 kg. Perigee: 855 km. Apogee: 1,001 km. Inclination: 79.9 deg.

Ionospheric research. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).


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Last update 12 March 2001.
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© Mark Wade, 2001 .