Search Results - "Lantoine, Gregory"

A Hybrid Differential Dynamic Programming Algorithm for Constrained Optimal Control Problems. Part 1: Theory by Lantoine, Gregory, Russell, Ryan P.

“…A new algorithm is presented to solve constrained nonlinear optimal control problems, with an emphasis on highly nonlinear dynamical systems. The algorithm,…”
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A Hybrid Differential Dynamic Programming Algorithm for Constrained Optimal Control Problems. Part 2: Application by Lantoine, Gregory, Russell, Ryan P.

“…In the first part of this paper series, a new solver, called HDDP, was presented for solving constrained, nonlinear optimal control problems. In the present…”
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Broad search for unstable resonant orbits in the planar circular restricted three-body problem by Anderson, Rodney L., Campagnola, Stefano, Lantoine, Gregory

“…Unstable resonant orbits in the circular restricted three-body problem have increasingly been used for trajectory design using optimization and invariant…”
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Quasi-terminator orbits near primitive bodies by Broschart, Stephen B., Lantoine, Gregory, Grebow, Daniel J.

“…Quasi-terminator orbits are introduced as a class of quasi-periodic trajectories in the solar radiation pressure (SRP) perturbed Hill dynamics. These orbits…”
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Optimization of low-energy resonant hopping transfers between planetary moons by Lantoine, Gregory, Russell, Ryan P., Campagnola, Stefano

“…In response to the scientific interest in Jupiter's Galilean moons, NASA and ESA have plans to send orbiting missions to Europa and Ganymede, respectively. The…”
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Indirect trajectory optimization via solar sailing primer vector theory: Minimum solar-angle transfers by Oguri, Kenshiro, Lantoine, Gregory

“…Building upon the recent development of solar sailing primer vector theory and its successful applications, we propose a new formulation for indirect…”
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Design Of Lunar-Gravity-Assisted Escape Trajectories by Casalino, Lorenzo, Lantoine, Gregory

“…Lunar gravity assist is a means to boost the energy and C3 of an escape trajectory. Trajectories with two lunar gravity assists are considered and analyzed…”
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Science orbit design with a quasi-frozen beta angle: effects of body obliquity on J2-perturbed dynamics by Oguri, Kenshiro, Lantoine, Gregory, Hart, William, McMahon, Jay

“…The beta angle, an angle formed by the sunlight and a spacecraft orbital plane, is an important parameter for science orbit design of orbiter missions. This…”
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Trajectory & maneuver design of the NEA Scout solar sail mission by Lantoine, Gregory, Cox, Andrew, Sweetser, Theodore, Grebow, Dan, Whiffen, Gregory, Garza, David, Petropoulos, Anastassios, Oguri, Kenshiro, Kangas, Julie, Kruizinga, Gerhard, Castillo-Rogez, Julie

“…The Near-Earth Asteroid Scout (NEA Scout) mission aimed to deliver a 6U CubeSat to a slow flyby of a Near Earth Asteroid using a solar sail as the primary…”
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Near Ballistic Halo-to-Halo Transfers between Planetary Moons by Lantoine, Gregory, Russell, Ryan P.

“…Intermoon transfers are important components of planetary tour missions. However, these transfers are challenging to design due in part to the chaotic…”
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Complete closed-form solutions of the Stark problem by Lantoine, Gregory, Russell, Ryan P.

“…Perturbed two-body problems play a special role in Celestial Mechanics as they capture the dominant dynamics for a broad range of natural and artificial…”
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A study on simultaneous design of a Hall Effect Thruster and its low-thrust trajectory by Kwon, Kybeom, Lantoine, Gregory, Russell, Ryan P., Mavris, Dimitri N.

“…Space missions involving Hall Effect Thrusters are more and more common, and designs of both Hall Effect Thrusters and low-thrust trajectories require more…”
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Magnetour: Surfing planetary systems on electromagnetic and multi-body gravity fields by Lantoine, Gregory, Russell, Ryan P., Anderson, Rodney L., Garrett, Henry B.

“…A comprehensive tour of the complex outer planet systems is a central goal in space science. However, orbiting multiple moons of the same planet would be…”
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Near Ballistic Halo-to-Halo Transfers between Planetary Moons by Lantoine, Gregory, Russell, Ryan P

“…Intermoon transfers are important components of planetary tour missions. However, these transfers are challenging to design due in part to the chaotic…”
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Optimal Control of Relative Motion in Arbitrary Fields: Application at Deimos by Russell, Ryan P., Lantoine, Gregory

“…A second-order, general dynamics, relative motion framework is formulated to solve for optimal finite-burn transfers in complex gravity fields that are not…”
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Remote sensing of venusian seismic activity with a small spacecraft, the VAMOS mission concept by Didion, Alan, Cutts, James, Lognonne, Philippe, Kenda, Balthasar, Drilleau, Melanie, Makela, Jonathan, Grawe, Matthew, Helbert, Jorn, Komjathy, Attila, Sutin, Brian, Nakazono, Barry, Karp, Ashley, Wallace, Mark, Lantoine, Gregory, Krishnamoorthy, Siddharth, Rud, Mayer

“…The Venusian atmosphere creates inhospitable temperature and pressure conditions for the surface of Venus, Earth's twin planet, making in-situ measurements of…”
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Psyche: Journey to a metal world by Lord, Peter, Tilley, Scott, Oh, David Y., Goebel, Dan, Polanskey, Carol, Snyder, Steve, Carr, Greg, Collins, Steven M., Lantoine, Gregory, Landau, Damon, Elkins-Tanton, Linda

“…In September 2015, NASA selected five mission concepts from a field of 27 to proceed to the next stage (step 2) of the latest Discovery mission competition…”
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NASA's Lunar Trailblazer Mission: A Pioneering Small Satellite for Lunar Water and Lunar Geology by Ehlmann, Bethany L., Klima, Rachel L., Seybold, Calina C., Klesh, Andrew T., Au, Mitchell H., Bender, Holly A., Bennett, C. Lee, Blaney, Diana L., Bowles, Neil, Calcutt, Simon, Copley-Woods, Djuna, Dickson, James L., Djotni, Karim, Hanna, Kerri Donaldson, Edwards, Christopher S., Evans, Rory, Felder, Emily, Fogg, Robert, Green, Robert O., Hawkins, Gary, House, Martha, Islas, Samuel, Lantoine, Gregory, Linch, Sue, McCaa, Thomas, McKinley, Ian, Merkley, Trevor F., Miura, Jasper K., Pieters, Carle M., Santiago, Wil, Scire, Elena, Sherwood, Richard, Shirley, Katherine, Smith, Chris, Sondheim, Michael, Sullivan, Peter, Temples, Jon, Thompson, David R., Waldorff, Kristian I, Williamson, Walton R., Warren, Tristam J., Wood, Joshua L., Zareh, Shannon

“…Selected in 2019 as a NASA SIMPLEx mission, Lunar Trailblazer is in implementation for flight system delivery at the end of 2022. The mission's goal is to…”
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Human-assisted Mars Sample Return by Gershman, Bob, Howe, Scott, Lantoine, Gregory, Love, Stan, Hopkins, Josh, Drever, Mike

“…Any Mars Sample Return campaign must assure a very low probability of inadvertent release of Mars material into the Earth's biosphere in order to provide…”
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A methodology for robust optimization of low-thrust trajectories in multi-body environments by Lantoine, Gregory

“…Future ambitious solar system exploration missions are likely to require ever larger propulsion capabilities and involve innovative interplanetary trajectories…”
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