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Fully autonomous navigation for the NASA cargo transfer vehicleA great deal of attention has been paid to navigation during the close approach (less than or equal to 1 km) phase of spacecraft rendezvous. However, most spacecraft also require a navigation system which provides the necessary accuracy for placing both satellites within the range of the docking sensors. The Microcosm Autonomous Navigation System (MANS) is an on-board system which uses Earth-referenced attitude sensing hardware to provide precision orbit and attitude determination. The system is capable of functioning from LEO to GEO and beyond. Performance depends on the number of available sensors as well as mission geometry; however, extensive simulations have shown that MANS will provide 100 m to 400 m (3(sigma)) position accuracy and 0.03 to 0.07 deg (3(sigma)) attitude accuracy in low Earth orbit. The system is independent of any external source, including GPS. MANS is expected to have a significant impact on ground operations costs, mission definition and design, survivability, and the potential development of very low-cost, fully autonomous spacecraft.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Wertz, James R.
(Microcosm, Inc. Torrance, CA, United States)
Skulsky, E. David
(Microcosm, Inc. Torrance, CA, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1991
Publication Information
Publication: NASA, Washington, NASA Automated Rendezvous and Capture Review. A Compilation of the Abstracts
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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