Encyclopedia Astronautica
IE


American earth ionosphere satellite. One launch, 1964.08.25, Explorer 20. Ionospheric research.

AKA: Ionosphere Explorer.
Gross mass: 44 kg (97 lb).
First Launch: 1964.08.25.
Number: 1 .

More... - Chronology...


Associated Countries
See also
  • Scout Solid-fuel, light payload, lower-cost launch vehicle developed by the Air Force and NASA in the late 1950's and used in a variety of configurations over thirty years. Launched from Cape Canaveral, Vandenberg, Wallops Island, and from Italy's equatorial San Marco platform off Kenya. Italy studied but did not develop subsequent upgraded versions. More...

Associated Launch Vehicles
  • Scout American all-solid orbital launch vehicle. Solid-fuel, light payload, lower-cost launch vehicle developed by the Air Force and NASA in the late 1950's and used in a variety of configurations over thirty years. Launched from Cape Canaveral, Vandenberg, Wallops Island, and from Italy's equatorial San Marco platform off Kenya. Italy studied but did not develop subsequent upgraded versions. More...
  • Scout X-4 American all-solid orbital launch vehicle. Four stage vehicle consisting of 1 x Algol 2A + 1 x Castor + 1 x Antares 2 + 1 x Altair 2 More...

Associated Manufacturers and Agencies
  • NASA American agency overseeing development of rockets and spacecraft. National Aeronautics and Space Administration, USA, USA. More...

Associated Programs
  • Explorer Series of satellites launched by Jet Propulsion Laboratory for the exploration of the space environment (micrometeoroids, charged particles, radiation, etc) from both earth orbital and heliocentric orbital locations. More...

Bibliography
  • McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: here.
  • JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Web Address when accessed: here.
  • McDowell, Jonathan, Launch Log, October 1998. Web Address when accessed: here.

Associated Launch Sites
  • Vandenberg Vandenberg Air Force Base is located on the Central Coast of California about 240 km northwest of Los Angeles. It is used for launches of unmanned government and commercial satellites into polar orbit and intercontinental ballistic missile test launches toward the Kwajalein Atoll. More...
  • Vandenberg SLC5 Scout launch complex. Dedicated Scout launch pad, used during the life of that vehicle from 1962 to 1994. More...

IE Chronology


1964 August 25 - . 13:43 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout X-4. LV Configuration: Scout X-4 S134R.
  • Explorer 20 - . Payload: IE A (S-48 Ionosphere Explorer). Mass: 44 kg (97 lb). Nation: USA. Agency: NASA Greenbelt. Program: Explorer. Class: Earth. Type: Ionosphere satellite. Spacecraft: IE. USAF Sat Cat: 870 . COSPAR: 1964-051A. Apogee: 999 km (620 mi). Perigee: 857 km (532 mi). Inclination: 79.9000 deg. Period: 103.60 min. Summary: Ionospheric research. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B)..

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