Gravitational perturbations correlated with the asteroid kinetic impact deflection technique
Abstract This paper presents the use of the kinetic impact technique to deflect asteroids that may present some risk of collision with Earth. Within the work to be developed here, we intend to evaluate in more detail the possibility to deflect the orbit of the asteroid 101955 Bennu by applying varia...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-07-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-15588-7 |
| _version_ | 1811224084600586240 |
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| author | B. S. Chagas A. F. B. A. Prado O. C. Winter |
| author_facet | B. S. Chagas A. F. B. A. Prado O. C. Winter |
| author_sort | B. S. Chagas |
| collection | DOAJ |
| description | Abstract This paper presents the use of the kinetic impact technique to deflect asteroids that may present some risk of collision with Earth. Within the work to be developed here, we intend to evaluate in more detail the possibility to deflect the orbit of the asteroid 101955 Bennu by applying variations in its velocity ( $$\Delta$$ Δ v) at different positions along its orbital period and measuring effects of close encounters with planet Earth. We will see that, in a relatively long period of time, the asteroid has several close encounters with the planet, thus suffering a natural gravitational perturbation. With the application of the impulses, the relative distances change, causing variations in the energy of the asteroid and a large variation in the relative distance between the asteroid and Earth over a long period after the impulse. We present results related to the magnitude of the impulse applied, which is important because its defines the mass and velocity of the impactor to be considered. Then, we mapped the positions of the impulses along a period of the orbit of the asteroid. We finish by explaining what happens to the orbit of the asteroid during the periods of gravitational perturbation, since the close encounters amount to “Swing Bys” that intensify the variations of the relative distances between the bodies after the impulse is applied. |
| first_indexed | 2024-04-12T08:44:06Z |
| format | Article |
| id | doaj.art-945602c99c0d4712a294b788c4a2d28a |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-12T08:44:06Z |
| publishDate | 2022-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-945602c99c0d4712a294b788c4a2d28a2022-12-22T03:39:46ZengNature PortfolioScientific Reports2045-23222022-07-0112111710.1038/s41598-022-15588-7Gravitational perturbations correlated with the asteroid kinetic impact deflection techniqueB. S. Chagas0A. F. B. A. Prado1O. C. Winter2Grupo de Dinâmica Orbital e Planetologia, São Paulo State University (UNESP)Grupo de Dinâmica Orbital e Planetologia, São Paulo State University (UNESP)Grupo de Dinâmica Orbital e Planetologia, São Paulo State University (UNESP)Abstract This paper presents the use of the kinetic impact technique to deflect asteroids that may present some risk of collision with Earth. Within the work to be developed here, we intend to evaluate in more detail the possibility to deflect the orbit of the asteroid 101955 Bennu by applying variations in its velocity ( $$\Delta$$ Δ v) at different positions along its orbital period and measuring effects of close encounters with planet Earth. We will see that, in a relatively long period of time, the asteroid has several close encounters with the planet, thus suffering a natural gravitational perturbation. With the application of the impulses, the relative distances change, causing variations in the energy of the asteroid and a large variation in the relative distance between the asteroid and Earth over a long period after the impulse. We present results related to the magnitude of the impulse applied, which is important because its defines the mass and velocity of the impactor to be considered. Then, we mapped the positions of the impulses along a period of the orbit of the asteroid. We finish by explaining what happens to the orbit of the asteroid during the periods of gravitational perturbation, since the close encounters amount to “Swing Bys” that intensify the variations of the relative distances between the bodies after the impulse is applied.https://doi.org/10.1038/s41598-022-15588-7 |
| spellingShingle | B. S. Chagas A. F. B. A. Prado O. C. Winter Gravitational perturbations correlated with the asteroid kinetic impact deflection technique Scientific Reports |
| title | Gravitational perturbations correlated with the asteroid kinetic impact deflection technique |
| title_full | Gravitational perturbations correlated with the asteroid kinetic impact deflection technique |
| title_fullStr | Gravitational perturbations correlated with the asteroid kinetic impact deflection technique |
| title_full_unstemmed | Gravitational perturbations correlated with the asteroid kinetic impact deflection technique |
| title_short | Gravitational perturbations correlated with the asteroid kinetic impact deflection technique |
| title_sort | gravitational perturbations correlated with the asteroid kinetic impact deflection technique |
| url | https://doi.org/10.1038/s41598-022-15588-7 |
| work_keys_str_mv | AT bschagas gravitationalperturbationscorrelatedwiththeasteroidkineticimpactdeflectiontechnique AT afbaprado gravitationalperturbationscorrelatedwiththeasteroidkineticimpactdeflectiontechnique AT ocwinter gravitationalperturbationscorrelatedwiththeasteroidkineticimpactdeflectiontechnique |