This article relies largely or entirely on a single source. (March 2014)
Prognoz 9 was a Soviet satellite. It was designed to investigate residual radiation from the Big Bang and gamma flares in deep space.
The mission was of Investigation of residual radiation from the Big Bang and gamma flares in deep space, and solar corpuscular and electromagnetic radiation plasma flows and magnetic fields in circumterrestrial space to determine the effects of solar activity on the interplanetary medium and the earth's magnetosphere. In addition to Soviet scientific apparatus, carried instruments built in Czechoslovakia and France.
- Mass: 1,060 kg (2,340 lb)
- Periapsis: 380 km (240 mi)
- Apoapsis: 720,000 km (450,000 mi)
- Period: 38448.0 min (26.7 days)
- Inclination: 65.5°.
The spacecraft with highly eccentric orbit was spin stabilized with a period of 113 s. The spin axis pointed towards the Sun, and was repointed every few days.
- Prognoz 9 mission at NASA's HEASARC
- Prognoz 9 at Space Monitoring Data Center
- Prognoz program at Encyclopedia Astronautica
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