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OKB-1 Sputnik 1
OKB-1 · Earth Orbit Satellite / First Artificial Earth Satellite / Radio Beacon · USSR · Early Jet (1946–1969)
Sputnik 1, often referred to as simply Sputnik, was the first artificial Earth satellite. It was launched into an elliptical low Earth orbit by the Soviet Union on 4 October 1957 as part of the Soviet space program. It sent a radio signal back to Earth for three weeks before its three silver-zinc batteries became depleted. Aerodynamic drag caused it to fall back into the atmosphere on 4 January 1958.
Specifications
- Category
- Space
- Sub-Category
- Satellite
- Domain
- Defence
- Era
- Early Jet (1946–1969)
- Country
- USSR
- Manufacturer
- OKB-1
- Operator
- Soviet Space Programme
- Primary Role
- Earth Orbit Satellite / First Artificial Earth Satellite / Radio Beacon
- Status
- Retired
- Service Entry
- 1957
- Produced
- 1
- Launch
- Sputnik rocket (R-7 derivative)
- MTOW (lb)
- 184
- Endurance (hr)
- 1440
- Service Ceiling (ft)
- 1450000