Stereo topographic models of Mercury after three MESSENGER flybys

Frank Preusker; Jürgen Oberst; James W. Head; Thomas R. Watters; Mark Robinson; Maria T. Zuber; Sean C. Solomon

doi:10.1016/j.pss.2011.07.005

Stereo topographic models of Mercury after three MESSENGER flybys

Frank Preusker, Jürgen Oberst, James W. Head, Thomas R. Watters, Mark Robinson, Maria T. Zuber, Sean C. Solomon

CLAS-NS: Earth and Space Exploration, School of (SESE)

Research output: Contribution to journal › Article

46 Scopus citations

Abstract

From photogrammetric analysis of stereo images of Mercury obtained during three MESSENGER flybys, we have produced three digital terrain models (DTMs) that have a grid spacing of 1 km and together cover 30% of the planets surface. The terrain models provide a rich source of information on the morphology of Mercurys surface, including details of tectonic scarp systems as well as impact craters and basins. More than 400 craters larger than 15 km in diameter are included in the models. Additionally, the models provide important test cases for the analysis of stereo image data to be collected during MESSENGERs orbital mission phase. Small lateral offsets and differences in trends between stereo DTMs and laser altimeter profiles may be due to remaining errors in spacecraft position, instrument pointing, or Mercury coordinate knowledge. Such errors should be resolved during the orbital mission phase, when more joint analyses of data and detailed orbit modeling will be possible.

Original language	English (US)
Pages (from-to)	1910-1917
Number of pages	8
Journal	Planetary and Space Science
Volume	59
Issue number	15
DOIs	https://doi.org/10.1016/j.pss.2011.07.005
State	Published - Dec 1 2011

Keywords

Digital terrain models
MESSENGER
Mercury
Topography

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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Preusker, F., Oberst, J., Head, J. W., Watters, T. R., Robinson, M., Zuber, M. T., & Solomon, S. C. (2011). Stereo topographic models of Mercury after three MESSENGER flybys. Planetary and Space Science, 59(15), 1910-1917. https://doi.org/10.1016/j.pss.2011.07.005

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abstract = "From photogrammetric analysis of stereo images of Mercury obtained during three MESSENGER flybys, we have produced three digital terrain models (DTMs) that have a grid spacing of 1 km and together cover 30% of the planets surface. The terrain models provide a rich source of information on the morphology of Mercurys surface, including details of tectonic scarp systems as well as impact craters and basins. More than 400 craters larger than 15 km in diameter are included in the models. Additionally, the models provide important test cases for the analysis of stereo image data to be collected during MESSENGERs orbital mission phase. Small lateral offsets and differences in trends between stereo DTMs and laser altimeter profiles may be due to remaining errors in spacecraft position, instrument pointing, or Mercury coordinate knowledge. Such errors should be resolved during the orbital mission phase, when more joint analyses of data and detailed orbit modeling will be possible.",

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AU - Preusker, Frank

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AU - Head, James W.

AU - Watters, Thomas R.

AU - Robinson, Mark

AU - Zuber, Maria T.

AU - Solomon, Sean C.

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AB - From photogrammetric analysis of stereo images of Mercury obtained during three MESSENGER flybys, we have produced three digital terrain models (DTMs) that have a grid spacing of 1 km and together cover 30% of the planets surface. The terrain models provide a rich source of information on the morphology of Mercurys surface, including details of tectonic scarp systems as well as impact craters and basins. More than 400 craters larger than 15 km in diameter are included in the models. Additionally, the models provide important test cases for the analysis of stereo image data to be collected during MESSENGERs orbital mission phase. Small lateral offsets and differences in trends between stereo DTMs and laser altimeter profiles may be due to remaining errors in spacecraft position, instrument pointing, or Mercury coordinate knowledge. Such errors should be resolved during the orbital mission phase, when more joint analyses of data and detailed orbit modeling will be possible.

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