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Measurements of Mercury librations from image and altimeter data

Stark, Alexander and Oberst, Jürgen and Preusker, Frank and Gwinner, Klaus (2011) Measurements of Mercury librations from image and altimeter data. Europlanet JRA1-NA1 Workshop - Planetary Geodesy and Ephemerides, 14-16 Nov 2011, Moscow, Russia.

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Abstract

The libration of Mercury provides through its dependence on the inertial axes a possibility to get a better understanding of the internal structure of the planet. We present a new method which allows the determination of the libration by a combination of two complementary data sets. The laser altimetry data provide a high height resolution and by several Obrservation also a temporal distribution. However, the stereo models derived from image data have a better lateral resolution and are fixed in time. Based on the latest observations from the MESSENGER spacecraft we present the first results of our measurements.

Document Type:Conference or Workshop Item (Speech)
Title:Measurements of Mercury librations from image and altimeter data
Authors:
AuthorsInstitution or Email of Authors
Stark, Alexanderalexander.stark@dlr.de
Oberst, Jürgenjuergen.oberst@dlr.de
Preusker, Frankfrank.preusker@dlr.de
Gwinner, Klausklaus.gwinner@dlr.de
Date:15 November 2011
Status:Published
Keywords:libration, Mercury, MESSENGER, laser altimetry, stereo imaging
Event Title:Europlanet JRA1-NA1 Workshop - Planetary Geodesy and Ephemerides
Event Location:Moscow, Russia
Event Type:Workshop
Event Dates:14-16 Nov 2011
Organizer:Moscow State University of Geodesy and Cartography (MIIGAiK)
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Exploration des Sonnensystems (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geodesy
Deposited By: Alexander Stark
Deposited On:16 Dec 2011 16:15
Last Modified:16 Dec 2011 16:15

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