https://doi.org/10.1140/epjs/s11734-023-01034-w
Regular Article
Studying the prevention of collision of asteroid Apophis with Earth by kinetic impact
1
Orbital Dynamics and Planetology Group, São Paulo State University (UNESP), 333, Dr. Ariberto Pereira da Cunha av., 12516-410, Guaratinguetá, SP, Brazil
2
INPE: National Institute for Space Research, Astronaut av., 12227-010, São José dos Campos, SP, Brazil
3
Academy of Engineering, RUDN University, Miklukho-Maklaya Street 6, 117198, Moscow, Russia
a bruno.ba.987@gmail.com, bruno.chagas@unesp.br
Received:
16
April
2023
Accepted:
9
November
2023
Published online:
11
December
2023
Deflecting potentially dangerous asteroids may not be an easy task due to the complexity of the system, as well as challenges such as monitoring and defining their future orbit, which can often be very sensitive to encounters with massive planets. Over the years, many proposals have been made to face the challenges and even deflect the asteroid from a possible collision with Earth. Within this scenario, we are proposing the use of the kinetic impact deflection technique combined with gravitational perturbations from the Earth. We assume the following scenario: the asteroid will have a closest approach to Earth and will move away again; however, in its next closest approach to Earth, it will collide with it. The proposal is to take advantage of the first maximum approach between the asteroid and the Earth, to apply a velocity variation on the asteroid that will have its effect intensified by the Swing-By with Earth. We will take the opportunity to understand how the planets can influence the results. Our results show that planets can change the results significantly. Another interesting result is that the minimum impulse to avoid Apophis collision has the magnitude of − 5 mm/s.
A. F. B. A. Prado and O. C. Winter have contributed equally to this work.
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© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
