Space Network (Paperback)

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Space Network (SN) is a NASA program that combines space and ground elements to support spacecraft communications in Earth vicinity. Tracking and Data Relay Satellite (TDRS) currently consists of first generation (F1-F7), and second generation (F8-F10) satellites. The space segment of the SN consists of up to six operational relay satellites in geosynchronous orbit. These communications satellites are allocated longitudes for relaying forward and return service signals to and from customers, any entity with an Earth-orbiting satellite that has an agreement with SN to use its communications services, for data transfer and tracking.