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Class: Earth. Type: Atmosphere. Nation: USA. Agency: NASA. 12 foot dia. balloon; identical to Explorer 9; atmospheric density studies.
SpecificationTotal Mass: 8 kg.
ADE Chronology
19 December 1963
Explorer 19 Program: Explorer. Launch Site: Vandenberg . Launch Vehicle: Scout X-4. Mass: 7 kg. Perigee: 597 km. Apogee: 2,391 km. Inclination: 78.6 deg. 12 foot dia. balloon; identical to Explorer 9; atmospheric density studies. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).
21 November 1964
Explorer 24 Program: Explorer. Launch Site: Vandenberg . Launch Vehicle: Scout X-4. Mass: 9 kg. Perigee: 530 km. Apogee: 2,498 km. Inclination: 81.4 deg. 12 foot dia. balloon; atmospheric density studies. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).
08 August 1968
Explorer 39 Program: Explorer. Launch Site: Vandenberg . Launch Vehicle: Scout B. Mass: 9 kg. Perigee: 670 km. Apogee: 2,538 km. Inclination: 80.7 deg. Air Density Explorer; atmospheric density and temperature data. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).
Bibliography:- 2 - McDowell, Jonathan, The United Nations Registry of Space Objects, Harvard University, 1997. HTML when accessed: http://hea-www.harvard.edu/QEDT/jcm/space/un/un.html
- 6 - JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. HTML when accessed: http://msl.jpl.nasa.gov/home.html
- 279 - McDowell, Jonathan, Launch Log, October 1998. HTML when accessed: http://hea-www.harvard.edu/~jcm/space/log/launch.html
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Last update 12 March 2001.
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© Mark Wade, 2001 .