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 › peer-review

47 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 2011

Keywords

Digital terrain models
MESSENGER
Mercury
Topography

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1016/j.pss.2011.07.005

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title = "Stereo topographic models of Mercury after three MESSENGER flybys",

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.",

keywords = "Digital terrain models, MESSENGER, Mercury, Topography",

author = "Frank Preusker and J{\"u}rgen Oberst and Head, {James W.} and Watters, {Thomas R.} and Mark Robinson and Zuber, {Maria T.} and Solomon, {Sean C.}",

note = "Funding Information: We thank Carolyn Ernst for helpful comments that improved an earlier version of this manuscript. The MESSENGER project is supported by the NASA Discovery Program under contracts NASW-00002 to the Carnegie Institution of Washington and NAS5-97271 to the Johns Hopkins University Applied Physics Laboratory . ",

year = "2011",

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doi = "10.1016/j.pss.2011.07.005",

language = "English (US)",

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AU - Preusker, Frank

AU - Oberst, Jürgen

AU - Head, James W.

AU - Watters, Thomas R.

AU - Robinson, Mark

AU - Zuber, Maria T.

AU - Solomon, Sean C.

N1 - Funding Information: We thank Carolyn Ernst for helpful comments that improved an earlier version of this manuscript. The MESSENGER project is supported by the NASA Discovery Program under contracts NASW-00002 to the Carnegie Institution of Washington and NAS5-97271 to the Johns Hopkins University Applied Physics Laboratory .

PY - 2011/12

Y1 - 2011/12

N2 - 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.

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.

KW - Digital terrain models

KW - MESSENGER

KW - Mercury

KW - Topography

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Stereo topographic models of Mercury after three MESSENGER flybys

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Keywords

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