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DS-U2-IP (Kosmos 378) [Yuzhnoye]

The DS-U2-IP satellites was a Soviet ionospheric research satellite launched as part of the Dnepropetrovsk Sputnik program.

The spacecraft studied ion and electron concentrations, ion chemical composition, and absorption of solar ultraviolet radiation in the atmosphere. Energetic-particle fluxes, related to the outer radiation belt and the “soft”-electron flow, were measured.

The only satellite of this type, Kosmos 378 was launched on 17 November 1970 on a Kosmos-3M booster from Plesetsk. It completed operations on 13 September 1971 and decayed from orbit and reentered the atmosphere on 17 August 1972.

Nation: USSR
Type / Application: Science, Ionosphere
Contractors: Yuzhnoye
Configuration: DS Bus
Power: 4 deployable fixed solar arrays, solar cells, batteries
Lifetime: 90 days
Mass: 710 kg
Orbit: 233 km × 1697 km, 74°
Satellite COSPAR Date LS Launch Vehicle Remarks
Kosmos 378 (DS-U2-IP #1) 1970-097A 17.11.1970 Pl LC-132/2 Kosmos-3M


  • Yuzhnoye: Small unified spacecraft
  • КБ "Южное": Название: Ракеты и космические аппараты Конструкторского бюро "Южное"

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