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Late 1972 – Spaceflight Tracking and Data Network (STDN) Established

Late 1972 - Apollo 17 Tracking Network
The Satellite Tracking and Data Acquisition Network (STADAN) and the Manned Space Flight Network (MSFN) were consolidated into the Spaceflight Tracking and Data Network (STDN). By the end of the decade, the number of tracking stations went from seventeen to fourteen. New capabilities and equipment were added to the tracking stations which…

The Satellite Tracking and Data Acquisition Network (STADAN) and the Manned Space Flight Network (MSFN) were consolidated into the Spaceflight Tracking and Data Network (STDN). By the end of the decade, the number of tracking stations went from seventeen to fourteen. New capabilities and equipment were added to the tracking stations which resulted in a fewer number of stations required.

› NASA Historical Data Books, Volume VI: NASA Space Applications, Aeronautics and Space Research and Technology, Tracking and Data Acquisition/Support Operations, Commercial Programs, and Resources, 1979-1988, Chapter Four (PDF)