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Vostok 4


 

Vostok 4 was a mission in the Soviet space program. It was launched a day after Vostok 3 with cosmonaut Pavel Popovich on board - the first time that more than one manned spacecraft was in orbit at the same time. The two capsules came within 5 km of one another and ship-to-ship radio contact was established.

Mission Parameters

  • Mass: 4728 kg
  • Perigee: 159 km
  • Apogee: 211 km
  • Inclination: 65.0°
  • Period: 88.2 minutes