Remarks on GEOS time synchronization
Time synchronization for geodetic earth orbiting satellite by STADAN
Laios, S. C.↗
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Remarks on ATS time synchronization
Applications Technology Satellite for tracking network time synchronization
Laios, S. C.↗
Remarks on Astrodata timing system
Redundant solid state digital clocks and code generators for reliable timing system
Laios, S. C.↗
Satellite time synchronization of a NASA network.
A satellite time synchronization technique has been used for synchronization of remotely separated clocks during the past several years. The NASA network has been successfully synchronized to an accuracy of tens of microseconds via the NASA Geodetic Earth Orbiting Satellite GEOS-11. The results indicate that a polar orbit satellite having an onboard clock can effectively be used to synchronize clocks on a global basis.
Laios, S. C.↗
Precise time transfer to the NASA Spaceflight Tracking and Data Network (STDN) via the Tracking and Data Relay Satellite System (TDRSS)
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Gafke, G. P.↗
NASA Communications Augmentation network
The NASA Communications (Nascom) Division of the Mission Operations and Data Systems Directorate (MO&DSD) is to undertake a major initiative to develop the Nascom Augmentation (NAUG) network to achieve its long-range service objectives for operational data transport to support the Space Station Freedom Program, the Earth Observing System (EOS), and other projects. The NAUG is the Nascom ground communications network being developed to accommodate the operational traffic of the mid-1990s and beyond. The NAUG network development will be based on the Open Systems Interconnection Reference Model (OSI-RM). This paper describes the NAUG network architecture, subsystems, topology, and services; addresses issues of internetworking the Nascom network with other elements of the Space Station Information System (SSIS); discusses the operations environment. This paper also notes the areas of related research and presents the current conception of how the network will provide broadband services in 1998.
Omidyar, Guy C.↗