J/A+A/684/A89 Advancements in 3D Shape Reconstruction of Phobos (Chen+, 2024)
Advancements in the 3D shape reconstruction of Phobos:
An analysis of shape models and future exploration directions.
Chen M., Yan J., Huang X., Zuo Z., Willner K., Xiang H., Barriot J.-P.
<Astron. Astrophys. 684, A89 (2024)>
=2024A&A...684A..89C 2024A&A...684A..89C (SIMBAD/NED BibCode)
ADC_Keywords: Models ; Planets
Keywords: methods: data analysis - techniques: image processing -
planets and satellites: Phobos - planets and satellites: surfaces
Abstract:
The research focuses on developing a high-precision and relatively
high-resolution shape model of Phobos. We employed advanced
photogrammetric techniques combined with novel computer vision methods
to reconstruct Phobos's 3D shape from nearly 900 Mars Express/SRC and
Viking Orbiter images. This research also involved comparing the newly
developed shape model with previous models to identify differences for
future missions. This shape model was used to generate new
measurements of the volume (5740±30)km2, the surface area
(1629±8)km2, and the bulk density (1847±11)kg/m3 of Phobos. By
comparing our reconstructed shape model with prior models, we have
identified key differences, especially in areas like the Opik crater
and near the Shklovsky crater. These findings highlight critical areas
warranting further investigation in future missions dedicated to
exploring Phobos.
Description:
This is a high-precision Phobos shape model reconstructed by improving
image matching based on the stereo-photogrammetric method. This is an
untextured version, which has 171863 vertices and 341724 faces.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
phobosuntexturedmodel.obj 47 685466 The model
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Acknowledgements:
Min Chen, min_chen(at)whu.edu.cn
(End) Patricia Vannier [CDS] 21-Feb-2024