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Using SpaceWire Time Codes for Spacecraft Time SynchronizationThis paper describes how SpaceWire Time Codes can be used for synchronizing time within various subsystems of a spacecraft as well as, maintaining a common time reference needed for coordinating operations within a spacecraft. The algorithms to account for inaccuracies in the time distribution method were based on the NASA-4009 Space Telecommunication Radio System (STRS) standard [1], which defined an interface for synchronizing clocks running at different tick rates and tick resolutions.
Document ID
20190026848
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
hdl:2014/46245
Authors
Clancy, Susan C. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Shihabi, Mazen M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Angkasa, Krisjani S. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
July 1, 2019
Publication Date
October 25, 2016
Subject Category
Communications And Radar
Report/Patent Number
JPL-CL-16-4677
Report Number: JPL-CL-16-4677
Meeting Information
Meeting: International SpaceWire Conference (ISC2016)
Location: Yokohama
Country: Japan
Start Date: October 25, 2016
End Date: October 27, 2016
Sponsors: European Space Agency
Distribution Limits
Public
Copyright
Other
Keywords
SpaceWire Time Distribution Protocol
Space Telecommunications Radio System (STRS)
CCSDS Unsegmented Time (CUC)

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