Sigma 7, MA-8 Tracking and Communications Networks. A detailed orbital mission flight chart and communications network links for the Sigma 7 capsule. Describes capsule mission phases associated with the NASA Goddard Space Flight Center (GSFC) and plots links between ground stations on a global map. A second global map illustrates various ground station sites and their associated locations along the MA-8 orbital ground track. Inscribed "E [sigma] 7" and signed by wally schirra at the top of the chart. Approximately 27x22 inches, machine-folded to 8.5x11 inches, black and white. NASA/GSFC, 1962