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Mercury׳s global shape and topography from MESSENGER limb images

Elgner, Stephan and Stark, Alexander and Oberst, Jürgen and Perry, Mark E. and Zuber, Maria T. and Robinson, Mark S. and Solomon, Sean C. (2014) Mercury׳s global shape and topography from MESSENGER limb images. Planetary and Space Science, 103, pp. 299-308. Elsevier. doi: 10.1016/j.pss.2014.07.019. ISSN 0032-0633.

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Official URL: http://www.sciencedirect.com/science/article/pii/S0032063314002256

Abstract

We derive models for the global shape and topography of Mercury from limb images obtained by the MESSENGER spacecraft during flybys and from orbit. Crossover heights of 225 individual limb profiles were adjusted by least-squares techniques to establish a rigid global topographic network. Mercury is confirmed to possess an equatorial ellipticity and a polar oblateness. Several large impact basins and craters can be identified in the topographic model, including one basin that was earlier proposed but unconfirmed. Comparisons with absolute height data from laser altimetry indicate that the limb model appears to overestimate planetary radius by ~900 m on average. Limb profiles and local digital terrain models derived from stereo-photogrammetry show good agreement.

Item URL in elib:https://elib.dlr.de/93047/
Document Type:Article
Title:Mercury׳s global shape and topography from MESSENGER limb images
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Elgner, StephanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stark, AlexanderUNSPECIFIEDhttps://orcid.org/0000-0001-9110-1138UNSPECIFIED
Oberst, JürgenUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Perry, Mark E.Planetary Exploration Group, Johns Hopkins University Applied Physics Laboratory, Laurel, MD 21044UNSPECIFIEDUNSPECIFIED
Zuber, Maria T.Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USAUNSPECIFIEDUNSPECIFIED
Robinson, Mark S.School of Earth and Space Exploration, Box 871404, Arizona State University, Tempe, Arizona 85287, USAUNSPECIFIEDUNSPECIFIED
Solomon, Sean C.Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC 20015, USAUNSPECIFIEDUNSPECIFIED
Date:2014
Journal or Publication Title:Planetary and Space Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:103
DOI:10.1016/j.pss.2014.07.019
Page Range:pp. 299-308
Publisher:Elsevier
ISSN:0032-0633
Status:Published
Keywords:Mercury Global shape Topography MESSENGER
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Vorhaben BepiColombo (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geodesy
Deposited By: Elgner, Stephan
Deposited On:15 Dec 2014 09:20
Last Modified:29 Nov 2023 08:29

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