Zobrazeno 1 - 10
of 240
pro vyhledávání: '"A. F. B. A. Prado"'
Autor:
A. K. de Almeida, T. Vaillant, V. M. de Oliveira, D. Barbosa, D. Maia, S. Aljbaae, B. Coelho, M. Bergano, J. Pandeirada, A. F. B. A. Prado, A. Guerman, A. C. M. Correia
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-19 (2024)
Abstract Maneuvering a spacecraft in the cislunar space is a complex problem, since it is highly perturbed by the gravitational influence of both the Earth and the Moon, and possibly also the Sun. Trajectories minimizing the needed fuel are generally
Externí odkaz:
https://doaj.org/article/be3c573419074525acf7b4043d155395
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-17 (2022)
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 or
Externí odkaz:
https://doaj.org/article/945602c99c0d4712a294b788c4a2d28a
Publikováno v:
Symmetry, Vol 15, Iss 5, p 1107 (2023)
Several non-functional objects are orbiting around the Earth and they are called space debris. In this work, we investigate the process of space debris mitigation from the GEO region using a solar sail. The acceleration induced by the solar radiation
Externí odkaz:
https://doaj.org/article/2a1ff091a07c49b984db9290e41b7c17
Autor:
Antonio F. B. A. Prado
Publikováno v:
Revista Brasileira de Ensino de Física, Vol 43 (2021)
O objetivo do presente trabalho é descrever a manobra assistida por gravidade, um dos pilares da exploração espacial, principalmente no que se refere aos planetas mais distantes do Sol, como Júpiter e Saturno. Essa manobra é também conhecida co
Externí odkaz:
https://doaj.org/article/a5e5c1092a034157b2fc2c600a3177e7
Publikováno v:
Scientific Reports. 13
The formation of our Solar System and planetary defense strategies are among the priorities to be investigated in the next years by the space science community. As in-situ missions to small bodies (as comets and asteroids) are options to conduct thes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58ecb75403bd1ef3d168ef6a881d18d8
https://doi.org/10.1038/s41598-023-33680-4
https://doi.org/10.1038/s41598-023-33680-4
Publikováno v:
Revista Mexicana de Astronomía y Astrofísica. 58:23-35
The Planetary Society's LightSail-2 mission successfully validated the orbital maneuvering capability of a solar radiation pressure (SRP) propelled spacecraft. This paper presents a study on two alternative attitude strategies for the orientation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3359807e669f66f91d6c8f3527c3d3dd
https://doi.org/10.22201/ia.01851101p.2022.58.01.02
https://doi.org/10.22201/ia.01851101p.2022.58.01.02
Publikováno v:
Journal of Guidance, Control, and Dynamics. 45:580-586
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e02570523db288780a38dcaf687a813b
https://doi.org/10.2514/1.g006364
https://doi.org/10.2514/1.g006364
Publikováno v:
Journal of Guidance, Control, and Dynamics. 45:587-598
This article presents a path-following control law for autonomous orbital maintenance of small body missions. The control law is robust, stable, and capable of controlling only the orbital geometry, allowing the spacecraft to operate with idle-thrust
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a272e4e414ce7824028ec6d15f26e003
https://doi.org/10.2514/1.g005863
https://doi.org/10.2514/1.g005863
This paper introduces the Circular Restricted n-Body Problem (CRNBP), an extension of the bicircular restricted four-body problem (BCR4BP) designed to describe the dynamics of an n-body system. In the CRNBP, each massive body in the system is constra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9dbeb7d3fae2582764363885dde8d2d7
Publikováno v:
Revista Mexicana de Astronomía y Astrofísica. 57:279-295
In this work, we study the effects of solar radiation pressure (SRP) on the problem of changing the orbit of an asteroid to support planetary defense, scientific research, or exploitation of materials. This alternative considers a tethered reflective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fed5586b68d21e2a667f4bd39046be7
https://doi.org/10.22201/ia.01851101p.2021.57.02.03
https://doi.org/10.22201/ia.01851101p.2021.57.02.03