Current Research Interests
Spaceflight mechanics / astrodynamics
Numerical methods applied to astrodynamics
Efficient software implementation (parallel computing, GPU computing)
Orbit estimation/ filtering theories/ applications
Optimal control of nonlinear systems
Third-body and manifold dynamics (low energy transfers, captures, and escapes)
Periodic orbits and general orbit stability (high-fidelity repeat ground track design, constellation design, cyclers, planetary moon trajectories)
General trajectory designs for spacecraft missions to low-Earth-orbit, Geo-stationary, the Moon, libration points, Mars, comets, asteroids, and the Jupiter and Saturn moon systems
Current Graduate Students
Kevin Bokelmann, firstname.lastname@example.org
Etienne Pellegrini, email@example.com
David Ottesen, firstname.lastname@example.org
Ashley Biria, email@example.com
Ricardo Leon Restrepo, firstname.lastname@example.org
Robert See, email@example.com
Patrick Wittick firstname.lastname@example.org
Forrest Ward, email@example.com
Tyler Mancini, firstname.lastname@example.org
Sean Mcardle, email@example.com
Chun-Yi Wu, firstname.lastname@example.org
Hatten, Noble, Space Object Translational and Rotational State Prediction and Sensitivity Calculation, December 2016
Olson, Corwin, Sequential Estimation Methods for Small Body Optical Navigation, Summer 2016
Demyan Lantukh, Preliminary Design of Spacecraft Trajectories for Missions to Outer Planets and Small Bodies , Summer 2013.
Nitin Arora, High Performance Algorithms to Improve the Runtime Computation of Spacecraft Trajectories, Summer 2013.
Gregory Lantoine, A Methodology for Robust Optimization of Low-Thrust Trajectories in Multi-Body Environments, Fall 2010.
Kybeom Kwon, A Novel Numerical Analysis of Hall Effect Thruster and Its Application in Simultaneous Design of Thruster and Optimal Low-Thrust Trajectory, Summer 2010. (co-advised)
Etienne Pellegrini , Max Schadegg, Hemanshu Patel, Danny Browne, Josh Ross, Kevin Bokelmann, Demyan Lantukh, Nitin Arora, Danny Browne, Adam Brinckerhoff, Bala Radharamanan, Sean Blackman, Jason Yu, Cengiz Akinli (co-advised), William J. Gallagher (co-advised)
R.P.R. began his professional career as a member of the Guidance, Navigation, and Control Section at NASA's Jet Propulsion Laboratory where he was involved as mission designer and orbit determination analyst for a variety of space flight projects. He also worked on proposals and advanced concepts for space missions to Earth, the Moon, Mars, comets, asteroids, and the moons around Jupiter and Saturn. He further supported internal research on developing technologies such as low-thrust trajectory optimization and science orbit design at planetary moons. From 2007-2011, RPR was on the faculty at the Georgia Institute of Technology, creating a research program focused on a variety of theoretical and applied areas in astrodynamics. R.P.R. has authored or co-authored over a hundred, conference, and other technical publications; and has been a recipient of several NASA, JPL, AIAA, AAS, and other awards.
Example Orbit Movies
(credit: Martin Lara)
Orbit Mechanics at UT alumni pages: Drew R. Jones
Paper on Experimenting with Algorithms found on The ACM Transactions on Mathematical Software (TOMS) website:
D.S. Johnson, A Theoretician's Guide to the Experimental Analysis of Algorithms, in Proceedings of the 5th and 6th DIMACS Implementation Challenges, M. Goldwasser, D. S. Johnson, and C. C. McGeoch, Editors, American Mathematical Society, Providence, 2002.
Orbital Mechanics Discipline Area
research group of:
Associate Professor, Ph.D
Department of Aerospace Engineering and Engineering Mechanics