Results 181 to 190 of about 313 (213)

Halo orbits around saturn

2002
We investigate the effects of planetary oblateness, quadrupole magnetic field, and solar radiation pressure on nonequatorial dust grain orbits about Saturn. Radiation pressure is found to be a strong perturber for small (≈ 100 nm) positively charged conducting ...
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Study of the transfer between halo orbits

Acta Astronautica, 1998
Abstract Two methods of transfer between halo orbits of the same family are developed making use of the geometry of the phase space around these solutions and the Floquet theory for periodic orbits. The study is done for the halo orbits around the libration point L1 of the Earth–Sun system, in the framework of the restricted three body problem.
G. Gómez, A. Jorba, A. Masdemont, C. Simó   +3 more
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Translunar Halo Orbits in the Quasibicircular Problem

1999
The Quasibicircular Problem (QBCP) is a four body problem where three masses are revolving in a quasibicircular motion (that is, a coherent motion close to bicircular), the fourth mass being small and not influencing the motion of the three primaries. The Earth-Moon-Sun-Spacecraft case is considered and the Hamiltonian which governs the motion of the ...
M. A. Andreu, C. Simó
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Optimal Approach to Halo Orbit Control

AIAA Guidance, Navigation, and Control Conference and Exhibit, 2003
Three-dimensional orbits in the vicinity of the collinear libration points of the Sun-Earth/Moon barycenter system are currently being considered for use with a number of missions planed for 2000 and beyond. Since such libration point trajectories are, in general, unstable, spacecraft moving on these paths must use some form of trajectory control to ...
Amirreza Rahmani, Mir-Abbas Jalali, Seid Pourtakdoust   +2 more
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H2 optimal halo orbit guidance

Astrodynamics Conference, 1992
An output feedback guidance law for a halo orbit about the translunar equilibrium point in the circular restricted three-body problem is developed. The equations of motion are derived and the location and stability of the translunar equilibrium point discussed.
Brian L. Jones, Robert H. Bishop
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Maintenance of earth-moon halo orbit

2017 36th Chinese Control Conference (CCC), 2017
Halo orbit nearby the Earth-Moon libration points is valuable to explore the lunar farside, which however must frequently be controlled to stay in the vicinity of libration points because of instability. With a consideration of the high fidelity force models, this paper focuses on maintenance of halo orbit nearby the Earth-Moon libration points. First,
Lei Liu, Chunyang Hu, Mei Wang, Yanjuan Wang   +3 more
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Earth–Moon L2 Quasi-Halo Orbit Family: Characteristics and Manifold Applications

Journal of Guidance, Control, and Dynamics, 2022
Daniel Scheeres, David Lujan
exaly  

Fifth order solution of halo orbits via Lindstedt–Poincaré technique and differential correction method

New Astronomy, 2021
Elbaz I Abouelmagd, Dhwani Sheth, Vineet K Srivastava   +2 more
exaly  

Analysis of nominal halo orbits in the Sun–Earth system

Archive of Applied Mechanics, 2021
Elbaz I Abouelmagd, Ashok Kumar Pal, Juan L G Guirao   +2 more
exaly  

Halo orbit design and optimization

http://archive.org/details ...
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