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Real-Time EDL Navigation Performance Using Spacecraft to Spacecraft Radiometric DataA two-year task sponsored by NASA's Mars Technology Program's Advanced Entry, Descent and Landing (EDL) work area includes investigation of improvements to EDL navigation by processing spacecraft-to-spacecraft radiometric data. Spacecraft-to- spacecraft navigation will take advantage of the UHF link between two spacecraft (i.e. to an orbiter from an approaching lander for EDL telemetry relay) to build radiometric data, specifically the velocity between the two spacecraft along the radio beam, that are processed to determine position and velocity in real time. The improved onboard state knowledge provided by spacecraft-to-spacecraft navigation will improve the performance of entry guidance by providing a more accurate state estimate and ultimately reduce the landed position error. Work on the final year of this task is reported here.
Document ID
20070032875
Acquisition Source
Jet Propulsion Laboratory
Document Type
Preprint (Draft being sent to journal)
External Source(s)
Authors
Burkhart, P. Daniel
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ely, Todd
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Duncan, Courtney
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lightsey, Glenn
(Texas Univ. Austin, TX, United States)
Campbell, Todd
(Texas Univ. Austin, TX, United States)
Mogensen, Andy
(Texas Univ. Austin, TX, United States)
Date Acquired
August 23, 2013
Publication Date
August 21, 2006
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Meeting Information
Meeting: AIAA Guidance, Navigation and Control Conference
Location: Keystone, CO
Country: United States
Start Date: August 21, 2006
End Date: August 24, 2006
Sponsors: American Inst. of Aeronautics and Astronautics
Distribution Limits
Public
Copyright
Other
Keywords
descent
entry
landing
Entry, Descent and Landing (EDL)
Electra
navigation

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