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A model to assess the Mars Telecommunications Network relay robustnessThe relatively long mission durations and compatible radio protocols of current and projected Mars orbiters have enabled the gradual development of a heterogeneous constellation providing proximity communication services for surface assets. The current and forecasted capability of this evolving network has reached the point that designers of future surface missions consider complete dependence on it. Such designers, along with those architecting network requirements, have a need to understand the robustness of projected communication service. A model has been created to identify the robustness of the Mars Network as a function of surface location and time. Due to the decade-plus time horizon considered, the network will evolve, with emerging productive nodes and nodes that cease or fail to contribute. The model is a flexible framework to holistically process node information into measures of capability robustness that can be visualized for maximum understanding. Outputs from JPL's Telecom Orbit Analysis Simulation Tool (TOAST) provide global telecom performance parameters for current and projected orbiters. Probabilistic estimates of orbiter fuel life are derived from orbit keeping burn rates, forecasted maneuver tasking, and anomaly resolution budgets. Orbiter reliability is estimated probabilistically. A flexible scheduling framework accommodates the projected mission queue as well as potential alterations.
Document ID
20060044301
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Girerd, Andre R.
Meshkat, Leila
Edwards, Charles D., Jr.
Lee, Charles H.
Date Acquired
August 23, 2013
Publication Date
October 17, 2005
Subject Category
Lunar And Planetary Science And Exploration
Meeting Information
Meeting: 56th International Astronautical Congress
Location: Fukuoka
Country: Japan
Start Date: October 17, 2005
End Date: October 21, 2005
Distribution Limits
Public
Copyright
Other
Keywords
Mars Telecommunications Orbiter (MTO)
network robustness
strategic planning

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