• Publications
  • Influence
The control and use of libration-point satellites
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Imaging of Small-Scale Features on 433 Eros from NEAR: Evidence for a Complex Regolith
On 25 October 2000, the Near Earth Asteroid Rendevous (NEAR)–Shoemaker spacecraft executed a low-altitude flyover of asteroid 433 Eros, making it possible to image the surface at a resolution ofExpand
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The Utilization of Halo Orbits in Advanced Lunar Operations
Flight mechanics and control problems associated with the stationing of spacecraft in halo orbits about the translunar libration point are discussed in some detail. Practical procedures for theExpand
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MESSENGER Mission Design and Navigation
Abstract Nearly three decades after the Mariner 10 spacecraft’s third and final targeted Mercury flyby, the 3 August 2004 launch of the MESSENGER (MErcury Surface, Space ENvironment, GEochemistry,Expand
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New Horizons Mission Design
Abstract In the first mission to Pluto, the New Horizons spacecraft was launched on January 19, 2006, and flew by Jupiter on February 28, 2007, gaining a significant speed boost from Jupiter’sExpand
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Spacecraft Exploration of Asteroids: The 2001 Perspective
An overview of spacecraft missions to asteroids is presented. Past missions include the Galileo flybys of 951 Gaspra and 243 Ida, NEAR Shoemaker’s flyby of 253 Mathilde, Deep Space One’s flyby ofExpand
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Lunar communications with libration-point satellites.
I N the post-Apollo period, with the advent of semipermanent lunar bases and far-ranging surface vehicles, a capability for direct communication between widely separated terminals will be required.Expand
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Utilization of libration points for human exploration in the Sun-Earth-Moon system and beyond
A plan to use the Sun–Earth L2 libration point as the primary hub for future human space activities in the Earth's neighborhood is described. Expand
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Station-keeping in the vicinity of collinear libration points with an application to a lunar communications problem.
Feedback control system to position satellite in vicinity of unstable collinear libration point with application to lunar communication problem
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Trajectory design and maneuver strategy for the MESSENGER mission to mercury
Destined to become the first spacecraft to orbit the planet Mercury, the MESSENGER spacecraft was launched on 3 August 2004. The 6.6-year ballistic trajectory to Mercury will utilize sixExpand
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