A Radio Science Experiment for the Ramses Mission to Apophis
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866910893403537408 |
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| author | Manghi, Riccardo Lasagni Zannoni, Marco Gramigna, Edoardo Tortora, Paolo Paialunga, Giacomo Negri, Andrea Cucinella, Giovanni De Rubeis, Pier Luigi Simone, Lorenzo |
| author_facet | Manghi, Riccardo Lasagni Zannoni, Marco Gramigna, Edoardo Tortora, Paolo Paialunga, Giacomo Negri, Andrea Cucinella, Giovanni De Rubeis, Pier Luigi Simone, Lorenzo |
| contents | This paper outlines the Radio Science Experiment (RSE) proposed for the RAMSES mission to asteroid (99942) Apophis, which will undergo a close Earth encounter in April 2029. This event provides a unique opportunity to study the asteroid's physical and dynamical changes under strong tidal forces. The experiment leverages a combination of Earth-based radiometric measurements, optical imaging, and inter-satellite links between the RAMSES mothercraft and deployable subcraft in proximity to Apophis. Using high-precision Doppler and optical navigation data, the RSE aims to estimate the asteroid's mass, gravity field, and spin state with unparalleled accuracy, furthering our understanding of near-Earth asteroid evolution and internal structure. Simulation results show the robustness of the proposed mission scenario, highlighting the critical role of multi-probe configurations and novel inter-satellite link technologies in achieving accurate gravity science results. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_19998 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A Radio Science Experiment for the Ramses Mission to Apophis Manghi, Riccardo Lasagni Zannoni, Marco Gramigna, Edoardo Tortora, Paolo Paialunga, Giacomo Negri, Andrea Cucinella, Giovanni De Rubeis, Pier Luigi Simone, Lorenzo Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics This paper outlines the Radio Science Experiment (RSE) proposed for the RAMSES mission to asteroid (99942) Apophis, which will undergo a close Earth encounter in April 2029. This event provides a unique opportunity to study the asteroid's physical and dynamical changes under strong tidal forces. The experiment leverages a combination of Earth-based radiometric measurements, optical imaging, and inter-satellite links between the RAMSES mothercraft and deployable subcraft in proximity to Apophis. Using high-precision Doppler and optical navigation data, the RSE aims to estimate the asteroid's mass, gravity field, and spin state with unparalleled accuracy, furthering our understanding of near-Earth asteroid evolution and internal structure. Simulation results show the robustness of the proposed mission scenario, highlighting the critical role of multi-probe configurations and novel inter-satellite link technologies in achieving accurate gravity science results. |
| title | A Radio Science Experiment for the Ramses Mission to Apophis |
| topic | Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics |
| url | https://arxiv.org/abs/2503.19998 |