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Prognoz 4



The spacecraft was a contribution to the International Magnetospheric Study (IMS) program, which carried experiments to investigate solar corpuscular, x-ray, and radio emissions, as well as to measure energetic particles, plasma, and magnetic fields in the magnetosphere and the interplanetary medium. In a cooperative program with scientists of the socialist countries, sounding rockets were launched to altitudes greater than 500 km to study the interaction of shortwave solar radiation with the atmosphere and ionosphere and to make in situ measurements of various parameters in these regions of space.

Alternate Names

  • 08510
  • Prognoz4

Facts in Brief

Launch Date: 1975-12-22
Launch Vehicle: Modified SS-6 (Sapwood) with 2nd Generation Upper Stage + Escape Stage
Launch Site: Tyuratam (Baikonur Cosmodrome), U.S.S.R
Mass: 905 kg

Funding Agency

  • Soviet Academy of Sciences (U.S.S.R)


  • Space Physics
  • Solar Physics
  • Astronomy

Additional Information

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



NameRoleOriginal AffiliationE-mail
Dr. Albert A. GaleevProject ScientistInstitut Kosmicheskich Issledovaniya (IKI)
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