With a single flight, she logged more flight time than the combined times of all American astronauts who had flown before that date. Her mission was used to continue the medical studies on humans in spaceflight and offered comparative data of the effects of space travel on women. Although Tereshkova experienced nausea and physical discomfort for much of the flight, she orbited the earth 48 times and spent 2 days, 22 hours, and 50 mins in space. As planned in all Vostok missions, Tereshkova ejected from the capsule during its descent at about four miles above the Earth and made a parachute landing north-east of Karaganda, Kazakhstan at 8:20 am UTC on 19 June. Bykovsky landed three hours after her.