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Internet Data Delivery for Future Space MissionsThis paper presents work being done at NASA/GSFC (Goddard Space Flight Center) on applying standard Internet applications and protocols to meet the technology challenge of future satellite missions. Internet protocols (IP) can provide seamless dynamic communication among heterogeneous instruments, spacecraft, ground stations, and constellations of spacecraft. A primary component of this work is to design and demonstrate automated end-to-end transport of files in a dynamic space environment using off-the-shelf, low-cost, commodity-level standard applications and protocols. These functions and capabilities will become increasingly significant in the years to come as both Earth and space science missions fly more sensors and the present labor-intensive, mission-specific techniques for processing and routing data become prohibitively expensive. This paper describes how an IP-based communication architecture can support existing operations concepts and how it will enable some new and complex communication and science concepts. The authors identify specific end-to-end file transfers all the way from instruments to control centers and scientists, and then describe how each data flow can be supported using standard Internet protocols and applications. The scenarios include normal data downlink and command uplink as well as recovery scenarios for both onboard and ground failures. The scenarios are based on an Earth orbiting spacecraft with data rates and downlink capabilities from 300 Kbps to 4 Mbps. Many examples are based on designs currently being investigated for the Global Precipitation Measurement (GPM) mission.
Document ID
20020052607
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Rash, James
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Hogie, Keith
(Computer Sciences Corp. Lanham, MD United States)
Casasanta, Ralph
(Computer Sciences Corp. Lanham, MD United States)
Hennessy, Joseph F.
Date Acquired
August 20, 2013
Publication Date
January 1, 2002
Subject Category
Astronautics (General)
Meeting Information
Meeting: ESTO Technology Conference
Location: Pasadena, CA
Country: United States
Start Date: June 11, 2002
End Date: June 13, 2002
Funding Number(s)
CONTRACT_GRANT: GS-35F-4381G
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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