@Article{SantosPradOlivSant:2018:AnImMa,
author = "Santos, Willer Gomes dos and Prado, Antonio Fernando Bertachini de
Almeida and Oliveira, Geraldo Magela Couto and Santos, Leonardo
Barbosa Torres dos",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)}",
title = "Analysis of impulsive maneuvers to keep orbits around the asteroid
2001SN263",
journal = "Astrophysics and Space Science",
year = "2018",
volume = "363",
keywords = "Impulsive maneuvers · Near-earth asteroids · Close proximity
operations · Irregular bodies · Astrodynamics.",
abstract = "The strongly perturbed environment of a small body, such as an
asteroid, can complicate the prediction of orbits used for close
proximity operations. Inaccurate predictions may make the
spacecraft collide with the asteroid or escape to the deep space.
The main forces acting in the dynamics come from the solar
radiation pressure and from the bodys weak gravity field. This
paper investigates the feasibility of using bi-impulsive maneuvers
to avoid the aforementioned non-desired phenomena (collisions and
escapes) by connecting orbits around the triple system asteroid
2001SN263, which is the target of a proposed Brazilian space
mission. In terms of a mathematical formulation, a recently
presented rotating dipole model is considered with oblateness in
both primaries. In addition, a two-point boundary value problem is
solved to find a proper transfer trajectory. The results presented
here give support to identifying the best strategy to find orbits
for close proximity operations, in terms of long orbital lifetimes
and low deltaV consumptions. Numerical results have also
demonstrated the significant influence of the spacecraft orbital
elements (semi-major axis and eccentricity), angular position of
the Sun and spacecraft area-to-mass ratio, in the performance of
the bi-impulsive maneuver.",
doi = "10.1007/s10509-017-3234-5",
url = "http://dx.doi.org/10.1007/s10509-017-3234-5",
issn = "0004-640X",
language = "en",
targetfile = "santos_analysis.pdf",
urlaccessdate = "25 abr. 2024"
}