| Issue |
A&A
Volume 684, April 2024
|
|
|---|---|---|
| Article Number | A89 | |
| Number of page(s) | 9 | |
| Section | Planets and planetary systems | |
| DOI | https://doi.org/10.1051/0004-6361/202348665 | |
| Published online | 05 April 2024 | |
Advancements in the 3D shape reconstruction of Phobos: An analysis of shape models and future exploration directions★
1
State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing, Wuhan University,
Wuhan
430072
Hubei Province, PR China
e-mail: jgyan@whu.edu.cn; huangxf@whu.edu.cn
2
Wuhan Wisdom Technology Co., Ltd.,
Wuhan
430000
Hubei Province, PR China
3
Institute of Planetary Research, German Aerospace Center (DLR),
Rutherfordstr. 2,
12489
Berlin, Germany
4
Geodesy Observatory of Tahiti, University of French Polynesia,
Tahiti,
BP 6570,
98702
Faa’a, French Polynesia, France
Received:
19
November
2023
Accepted:
31
January
2024
Aims. Our research focuses on developing a high-precision and relatively high-resolution shape model of Phobos.
Methods. We employed advanced photogrammetric techniques combined with novel computer vision methods to reconstruct the 3D shape of Phobos from nearly 900 Mars Express/SRC and Viking Orbiter images. This research also involved a comparison of the newly developed shape model with previous models to identify differences for future missions.
Results. This shape model was used to generate new measurements of the volume (5740 ± 30) km3, the surface area (1629 ± 8) km2, and the bulk density (1847 ± 11) kg m−3 of Phobos. By comparing our reconstructed shape model with prior models, we have identified key differences, especially in areas such as the Opik crater and near the Shklovsky crater. These findings highlight critical areas that warrant further investigation in future missions dedicated to exploring Phobos.
Key words: methods: data analysis / techniques: image processing / planets and satellites: individual: Phobos / planets and satellites: surfaces
The shape models are available at the CDS via anonymous ftp to cdsarc.cds.unistra.fr (130.79.128.5) or via https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/684/A89
© The Authors 2024
Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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