Opportunity rover localization and topographic mapping at the landing site of Meridiani Planum, Mars

Details Opportunity rover localization and topographic mapping at the landing site of Meridiani Planum, Mars Opportunity rover localization and topographic mapping at the landing site of Meridiani Planum, Mars

Feb 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jgre..11202s90l&link_type=abstract

Journal of Geophysical Research, Volume 112, Issue E2, CiteID E02S90

Physics

Geophysics

4

Exploration Geophysics: Data Processing, Exploration Geophysics: Remote Sensing, Geodesy And Gravity: Space Geodetic Surveys

Scientific paper

This paper presents the results of Mars topographic mapping and lander and rover localization for the Opportunity rover at Meridiani Planum during the Mars Exploration Rover (MER) 2003 mission. By Sol 458, the Opportunity rover traversed a distance of 5.20 km. We localized the lander using two-way Doppler radio positioning and cartographic triangulation of craters visible in both orbital and ground images. Additional high-resolution orbital images were taken to verify the determined lander position. Visual odometry and bundle adjustment techniques were applied to overcome wheel slippages, azimuthal angle drift, and other navigation errors (as large as 21% within Eagle crater). In addition, orbit-to-ground image-based adjustment was applied to correct rover location errors where bundle adjustment was not applicable. We generated timely topographic products, including orthoimages, digital terrain models (DTMs), three-dimensional (3-D) crater models, and rover traverse maps. In particular, detailed 3-D terrain models of major features, such as Endurance crater, have been generated using multisite panoramic stereo images based on bundle adjustment and wide baseline stereo technique.

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