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Sputnik 02


Designation 00003 / 57002A
Launch date 3 Nov 1957
Country of origin CIS
Mission Scientific: Sun observation
Perigee/Apogee 225/1670 km
Inclination 65.3°
Period 103.7 min
Launch vehicle Semiorka A
Launch site Tyuratam
Mass at launch 508.3 kg

1.2 m high cone that carried Laika (a dog) the first living creature in Space. Also studied X-rays and UV radiations from the Sun. The dog died after a few hours from overheating and stress.

End of life

Decay 14 Apr 1958

Technical data


Prime contractor  
Mass at launch 508 kg
Mass in orbit  
Solar array  
DC power  
Design lifetime  

Frequencies: 20.005 & 40.002 MHz (Tral-D TM system)

The satellite also featured a slow-scan TV camera (100 lines per frame, 10 frames per second), which relayed images to the ground.

There was also a spectrophotometer for UV (1216 A) and Soft-X-rays (1-120 A) using a photomultiplier tube and a filterwheel. This instrument sent data through a commutated telemetry channel. The instrument was designed by the St. Peterburg physicist A. Jefremov under the direction of Academicians A. Lebedev and S. Mandelstam.

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