Several delays plagued the prelaunch preparations of Vostok 5, the biggest being concern over elevated solar flare activity.

At this early phase, it was not well understood what effects this might have on the spacecraft and its passenger, so the planned launch date of 11 June was postponed a few days.

A gyroscope in the Blok E stage malfunctioned and needed to be replaced, but this would mean removing the propellants from the booster, taking it down from the pad back to the vehicle assembly building, and delaying the launch another several days.

Bykovsky performed a couple of simple scientific experiments in orbit and also practiced exercise and testing his body's reactions to weightlessness.

In the postflight debriefing, he would say that the overall design of the spacecraft was good, but the clock was in a location that made it hard to see and the instrument panel was placed too far away.

One monument is a 10-meter tall silver rectangle with a small stone marker nearby listing the date of the landing.