Mission: SIGMA 7
Launch Date: October 3, 1962
Launch Pad: LC-14
Vehicle: Atlas (8)
Crew: Walter M. Schirra
Payload: Spacecraft No. 16, Launch Vehicle Number 113-D
Mercury Atlas 8 (MA-8 Sigma 7) was the third manned orbital flight of the Mercury program. The objectives of MA-8 were to: (1) evaluate the performance of the man-spacecraft system in a six-pass orbital mission; (2) evaluate the effects of an extended orbital space flight on the astronaut and to compare this analysis with those of previous missions and astronaut-simulator programs; (3) obtain additional astronaut evaluation of the operational suitability of the spacecraft and support systems for manned orbital flights; (4) evaluate the performance of spacecraft systems replaced or modified as a result of previous three-pass orbital missions; and, (5) evaluate the performance of and exercise further the Mercury Worldwide Network and mission support forces and establish their suitability for extended manned flight.
Altitude: 175.8 by 100 statute miles
Period: 88 minutes, 55 seconds
Duration: 0 Days, 9 hours, 13 minutes, 11 seconds
Distance: 143,983 statute miles
Velocity: 17,558 miles per hour
Max Q: 964 psf
Max G: 8.1
The mission was successful. Total time weightless was 8 hours, 56 minutes, 22 seconds.