Sputnik 01

Also called PS 1

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General

Designation	00002 / 57001B
Launch date	4 Oct 1957
Country of origin	CIS
Mission	Scientific: ionosphere study
Perigee/Apogee	227/945 km
Inclination	65°
Period	96.1 min
Launch vehicle	Semiorka A (8K71PS)
Launch site	Tyuratam

First satellite ever launched

Sphere made of aluminum of 58 cm diameter with 4 antennas. Its 2 radio transmitters send signals during 21 days. It enabled propagation and ionospherical studies.

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End of life

Decay

3 Jan 1958

Technical data

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Specifications

Prime contractor
Platform
Mass at launch	83.6 kg
Mass in orbit
Dimension	58 cm diameter
Solar array
Stabilization
DC power
Design lifetime

Frequencies: 20.005 & 40.002 MHz

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