Technical challenges and results for navigation of NEAR Shoemaker.

Details Technical challenges and results for navigation of NEAR Shoemaker. Technical challenges and results for navigation of NEAR Shoemaker.

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jhatd..23...34w&link_type=abstract

Johns Hopkins APL Technical Digest, Vol. 23, No. 1, p. 34 - 45 (January - March 2002). In: NEAR Shoemaker at Eros

Physics

1

Space Missions, Minor Planets

Scientific paper

When the NEAR Shoemaker spacecraft began its orbit about the asteroid 433 Eros on 14 February 2000, it marked the beginning of many first for deep space navigation. Among these were the design and estimation techniques that were necessary to plan and execute navigation of the first spacecraft to orbit and land on an irregularly shaped small body. This article describes the navigation strategy and results for the rendezvous, orbit, and landing phases of the NEAR mission. Included are descriptions of the new techniques developed to deal with navigation challenges encountered during rendezvous and the year-long orbit phase. The orbit phase included circular orbits down to a 35-km radius and elliptical orbits that targeted overflights to within 2.7 km above the surface. The orbit phase ended on 12 February 2001, when NEAR Shoemaker was guided to a soft landing on the surface of Eros.

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