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Willner, K. and Oberst, J. and Hussmann, H. and Giese, B. and Hoffmann, H. and Matz, K.-D. and Roatsch, T. and Duxbury, T. (2010) Phobos Control Point Network, Rotation, and Shape. Earth and Planetary Science Letters, 294, pp. 541-546. Elsevier. DOI: 10.1016/j.epsl.2009.07.033
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Official URL: http://dx.doi.org/10.1016/j.epsl.2009.07.033
Abstract
A new independent control point network for Phobos was computed from image data obtained by the SRC (Super Resolution Channel) on board the European Mars Express Mission. The network solution includes 3D coordinates of 665 surface control points and was used to observe the forced libration amplitude of Phobos. Based on the network control points a spherical harmonic function model to degree and order 17 was derived, from which volume, bulk density and moments of inertia were computed. The modeled forced libration amplitude agrees to our observation within the error bands, indicating a homogeneous mass distribution for Phobos. To bring both values into exact agreement with the observations, different mass distribution models were applied. It appears that the amplitude is relatively insensitive to a simple two-layer density model.
| Item URL in elib: | https://elib.dlr.de/58102/ | |||||||||||||||||||||||||||
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| Document Type: | Article | |||||||||||||||||||||||||||
| Title: | Phobos Control Point Network, Rotation, and Shape | |||||||||||||||||||||||||||
| Authors: |
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| Date: | 2010 | |||||||||||||||||||||||||||
| Journal or Publication Title: | Earth and Planetary Science Letters | |||||||||||||||||||||||||||
| Refereed publication: | Yes | |||||||||||||||||||||||||||
| Open Access: | No | |||||||||||||||||||||||||||
| Gold Open Access: | No | |||||||||||||||||||||||||||
| In SCOPUS: | Yes | |||||||||||||||||||||||||||
| In ISI Web of Science: | Yes | |||||||||||||||||||||||||||
| Volume: | 294 | |||||||||||||||||||||||||||
| DOI : | 10.1016/j.epsl.2009.07.033 | |||||||||||||||||||||||||||
| Page Range: | pp. 541-546 | |||||||||||||||||||||||||||
| Publisher: | Elsevier | |||||||||||||||||||||||||||
| Status: | Published | |||||||||||||||||||||||||||
| Keywords: | Phobos, Control point network, Shape, Rotation, Physical parameters | |||||||||||||||||||||||||||
| 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 - Projekt MARS-EXPRESS / HRSC (old) | |||||||||||||||||||||||||||
| Location: | Berlin-Adlershof | |||||||||||||||||||||||||||
| Institutes and Institutions: | Institute of Planetary Research > Planetary Geodesy Institute of Planetary Research Institute of Planetary Research > Planetary Geology | |||||||||||||||||||||||||||
| Deposited By: | Willner, Dr Konrad | |||||||||||||||||||||||||||
| Deposited On: | 03 Dec 2009 11:23 | |||||||||||||||||||||||||||
| Last Modified: | 10 Jan 2019 15:47 |
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