• Professor, Aerospace Engineering
  • Member, National Academy of Engineering
  • University Distinguished Professor
  • Regents Professor
  • Jack E. and Frances Brown Chair II
Terry Alfriend profile photo

Educational Background

  • Ph.D., Engineering Mechanics, Virginia Tech – 1967
  • M.S., Engineering Mechanics, Stanford University – 1964
  • B.S., Engineering Mechanics, Virginia Tech – 1962

Research Interests

    • Space domain awareness
    • Astrodynamics
    • Satellite formation dynamic, control and relative navigation
    • Dynamical systems theory
    • Attitude dynamics and control
    • Space systems
    • Space debris

Certifications & Memberships

  • Honorary Fellow, American Institute of Aeronautics and Astronautics – 2015
  • Member, National Academy of Engineering – 1999
  • Member, International Academy of Astronautics – 1998
  • Fellow, American Institute of Aeronautics and Astronautics – 1988
  • Fellow, American Astronomical Society – 1987

Awards & Honors

  • Goddard Astronautics Award, American Institute of Aeronautics and Astronautics – 2022
  • University Distinguished Professor, Texas A&M University – 2017
  • Guidance, Navigation and Control Award, American Institute of Aeronautics and Astronautics – 2017
  • International Scientific Cooperation Award, American Association for the Advancement of Science – 2005
  • Mechanics and Control of Flight Award, American Institute of Aeronautics and Astronautics – 1998

Selected Publications

  • Park, W. and Alfriend, K.T., "Dynamic Model Fidelity Effects on Covariance Based Track Association, AIAA J. of Guidance, Control and Dynamics, Vol. 47, No. 7, July 2024, pp. 1298-1308
  • Prabhu, K., Alfriend, K.T., Rahmani, A. and Hadaegh, F., "Distributed Least Absolute Deviations," AIAA J. of Guidance, Control and Dynamics, Vol. 47, No. 1, Jan 2024, pp. 49-60
  • Eapen, R. T., Howell, K. C., and Alfriend, K. T., “Momentum Maps and Transport Mechanisms in the Planar Circular Restricted Three-Body Problem,” Journal of the Astronautical Sciences, 69, Pages 1263-1291, Oct 2022
  • Zeng, X., Wen, T., Li, Z., and Alfriend, K. T., “Natural Landing Simulations on Generated Local Rocky Terrains for Asteroid Cubic Lander,” IEEE Transactions on Aerospace and Electronic Systems, 58 (4), Pages 3492-3508, August 2022
  • Mahajan, B., Alfriend, K.T., “Analytic orbit theory with any arbitrary spherical harmonic as the dominant perturbation,” Celestial Mechanics and Dynamical Astronomy, 133, 25, May 2021
  • Prabhu, K., Majji, M., and Alfriend, K. T., “Least Sum of Absolute Residuals Orbit Determination,” Journal of Guidance Control and Dynamics, 45 (3), Pages 468-480, Oct 2021
  • Eapen, R. T., Majji, M., and Alfriend, K. T., “Attitude dynamics of a rigid body in Keplerian motion,” Celestial Mechanics and Dynamical Astronomy, 133, 2, Jan 2021
  • Mahajan, B. and Alfriend, K. T., “Analytic orbit theory with any arbitrary spherical harmonic as the dominant perturbation,” Celestial Mechanics and Dynamical Astronomy, 131 (10), 45, Sept 2019