Vostok 4
| Mission Insignia | |
| Mission Statistics | |
| Mission Name: | Vostok 4 |
| Call Sign: | Berkut (Беркут, translated as "Golden Eagle") |
| Number of Crew Members: | 1 |
| Launch: | August 12, 1962 08:02:33 UTC Baikonur LC1 |
| Landing: | August 15, 1962 06:59 UTC 48°9'N, 71°51'E |
| Duration: | 2 days, 22 hours, 56 minutes |
| Number of Orbits: | 48 |
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 crewed spacecraft was in orbit at the same time. The two capsules came within 5km of one another and ship-to-ship radio contact was established.
The mission went largely as planned, despite a malfunction with the Vostok's life-support systems that meant that cabin temperature dropped down to 10°C. The flight was terminated early, after a misunderstanding by ground control, who believed that Popovich had given them a code-word asking to be brought back ahead of schedule.
The re-entry capsule is now on display at the NPO Zvezda Museum in Moscow, but it has been modified to represent the Voskhod 2 capsule.
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