Cosmonaut: Gherman S. Titov [1]
Backup: Andrian G. Nikolayev
Launch:
    Date: 6 August 1961
    Time: 05:00 UTC
Landing:
    Location: Saratov region
    Date: 7 August 1961
    Time: 06:18 UTC
Orbits: 17.5
Duration: 1 day, 1 hour, 18 minutes
Call Sign: Orel (Eagle)

General Kamanin (cosmonaut commander) and V. I. Yazdivsky (spaceflight doctor) wanted to proceed cautiously and recommended only 3 orbits. Political pressure was applied to go for a full day. Politics won. Titov did suffer from space sickness, but that passed after a few orbits.

It would be a full year before the next Vostok flight. Doctors wanted to study Titov for possible effects of the weightlessness.