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Intercosmos 4



The Intercosmos 4 mission was a joint effort of the German Democratic Republic, the U.S.S.R., and Czechoslovakia. The spacecraft carried a Soviet X-ray polarimeter and X-ray spectroheliograph, an East German UV photometer in the Lyman-alpha range and a real-time telemetry system, and a Czech X-ray photometer with power analyzer and optical photometer. Radioastronomical, ionospheric, and optical observations of the payload were conducted by scientists in Bulgaria, Hungary, Poland, and Rumania. Intercosmos 4 had an eight-channel telemetry system that transmitted both stored and real-time data.

Alternate Names

  • 04580
  • IK- 4
  • Intercosmos4

Facts in Brief

Launch Date: 1970-10-14
Launch Vehicle: Modified SS-4 (Sandal IRBM) plus Upper Stage
Launch Site: Kapustin Yar, U.S.S.R
Mass: 400 kg

Funding Agency

  • Unknown (U.S.S.R)


  • Solar Physics
  • Earth Science

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

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