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Gravity, equilibrium, and height system of Phobos and Deimos: an updated geodetic analysis

Hu, Xuanyu and Oberst, J. and Willner, Konrad (2019) Gravity, equilibrium, and height system of Phobos and Deimos: an updated geodetic analysis. In: EPSC-DPS Joint Meeting 2019. EPSC-DPS Joint Meeting 2019, 15. Sep. -20. Sep. 2019, Genf, Schweiz.

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Official URL: https://meetingorganizer.copernicus.org/EPSC-DPS2019/EPSC-DPS2019-1820-1.pdf

Abstract

We evaluate the gravity equilibrium forms of the irregular-shaped Martian moons, Phobos and Deimos. We derive their normal ellipsoids and propose the el- lipsoidal height system to characterize the surface to- pography. We study the height distributions on Pho- bos and Deimos and compare their statistics with those of nearly spherical terrestrial planets. We identify a new criterion for determining surface equilibrium of the Martian moons and discuss its generality to other small bodies.

Item URL in elib:https://elib.dlr.de/129646/
Document Type:Conference or Workshop Item (Speech)
Title:Gravity, equilibrium, and height system of Phobos and Deimos: an updated geodetic analysis
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hu, XuanyuInstitute of Geodesy and Geoinformation Science, Technical University of BernUNSPECIFIED
Oberst, J.DLR, GermanyUNSPECIFIED
Willner, Konradkonrad.willner (at) dlr.dehttps://orcid.org/0000-0002-5437-8477
Date:16 September 2019
Journal or Publication Title:EPSC-DPS Joint Meeting 2019
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Martian Moons, Accreation, dynamic modelling
Event Title:EPSC-DPS Joint Meeting 2019
Event Location:Genf, Schweiz
Event Type:international Conference
Event Dates:15. Sep. -20. Sep. 2019
Organizer:Europlanet
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben Exploration des Sonnensystems
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geodesy
Deposited By: Willner, Dr Konrad
Deposited On:21 Oct 2019 08:08
Last Modified:21 Oct 2019 08:08

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