Publications

πŸŽ“ Google Scholar Profile
Categories

Journal Papers

  1. [J3]
    Choi, S., Das-Stuart, A., Anderson, R. L., & Abdelkhalik, O. (2026). Vectorized dynamic-size genetic algorithm for rapid generation of optimal and suboptimal flyby sequences. Astrodynamics, 1-24. [DOI]
  2. [J2]
    Choi, S., Negrete, A., Abdelkhalik, O., Servadio, S., & Lee, D. D. (2026). Ambiguity-Free Geometric Approach to Deep-Space Navigation Using Angles-Only Measurements. Journal of Guidance, Control, and Dynamics, 1-14. [DOI]
  3. [J1]
    Choi, S., Abdelkhalik, O., & He, P. (2025). Multidisciplinary optimization of end-to-end Mars aerobraking trajectory and spacecraft design. Advances in Space Research, 75(11), 8065-8083. [DOI]

Conference Proceedings

  1. [C12]
    Choi, S., Abdelkhalik, O., Servadio, S., & Lee, D. (2026). Deep-Space Initial Orbit Determination from Angles-Only Measurements Without Prior Attitude or Distance Information. In AIAA/AAS Astrodynamics Specialist Conference.
  2. [C11]
    Choi, S., Gibson, T., & Abdelkhalik, O. (2025). Learning-Based Placement of Deep Space Maneuvers in the Rendezvous Problem. In Daniele Mortari Astronautics Symposium.
  3. [C10]
    Negrete, A., Choi, S., & Abdelkhalik, O. (2025). Shape-based Approximation for Low-Thrust Spacecraft Trajectory Using Chebyshev Polynomials. In Daniele Mortari Astronautics Symposium.
  4. [C9]
    Choi, S., & Abdelkhalik, O. (2025). Shape-based Low-Thrust Ξ”V Prediction Using Deep Neural Networks. In Daniele Mortari Astronautics Symposium.
  5. [C8]
    Choi, S., Das-Stuart, A., Anderson, R. L., & Abdelkhalik, O. (2025). Reinforcement Learning for Multiple Gravity Assist Trajectory Optimization. In 76th International Astronautical Congress (IAC 2025).
  6. [C7]
    Choi, S., Abdelkhalik, O., Das-Stuart, A., & Anderson, R. L. (2025). Neural Network-Based Universal Variable Approximation for Lambert's Problem. In AIAA/AAS Space Flight Mechanics Meeting.
  7. [C6]
    Choi, S., Abdelkhalik, O., & He, P. (2025). Multidisciplinary Optimization of End-to-End Mars Aerobraking Trajectory and Spacecraft Design. In AIAA/AAS Space Flight Mechanics Meeting.
  8. [C5]
    Choi, S., Abdelkhalik, O., Das-Stuart, A., & Anderson, R. L. (2024). Vectorized Dynamic Size Genetic Algorithm for Fast Flyby Sequence Generation. In AIAA/AAS Astrodynamics Specialist Conference.
  9. [C4]
    Choi, S., Abdelkhalik, O., Das-Stuart, A., & Anderson, R. L. (2024). Machine Learning Application for Lambert's Problem. In AIAA/AAS Astrodynamics Specialist Conference.
  10. [C3]
    Choi, S., Knapick, D., Vijayakumar, M., & Abdelkhalik, O. (2024). Hidden Genes Genetic Algorithm with Low-Thrust Shape-Based Method. In AIAA SCITECH 2024 Forum (p. 0629).
  11. [C2]
    Choi, S., Choi, J., & Park, C. (2019). Trans-Lunar Trajectory Design Using Virtual Orbital Plane Based on Ephemeris. Abstracts of the Korean Society for Aeronautical and Space Sciences Conference, 214-215. (Excellent Paper Presentation Award)
  12. [C1]
    Choi, J., Hwang, J., Choi, S., & Park, C. (2018). Preliminary Mission Planning for Multiple Asteroid Exploration. Abstracts of the Korean Society for Aeronautical and Space Sciences Conference, 313-314.

Student Conference Proceedings

  1. [S3]
    Larsen, K. (2026, March). A Contour-Integral Approach to Collinear Lagrange Points and Zero-Velocity Region Openings in the Circular Restricted Three-Body Problem. In 2026 Regional Student Conferences (p. 114205).
  2. [S2]
    Roy, T. (2026, March). Low-Thrust Trajectory Optimization via Direct Transcription Using Extreme Theory of Functional Connections. In 2026 Regional Student Conferences (p. 114788).
  3. [S1]
    Park, M. (2026, March). A Comparative Study of Physics-Informed Neural Networks and Extreme Theory of Functional Connections for Two-Point Orbital Transfers. In 2026 Regional Student Conferences (p. 115555).

Poster Presentations

  1. [P4]
    Yi, A., Servadio, S., & Choi, S. (2026). Robust Deep-Space Navigation Via Four-Body Angles-Only Analysis. EUReCA Summer Undergraduate Research Showcase, Ames, Iowa. [Poster]
  2. [P3]
    Choi, S., & Abdelkhalik, O. (2025). Ambiguity-Free Geometrical Deep Space Navigation Using Angle-Only Measurements. Iowa Space Grant Consortium Spring Research Symposium, Ames, Iowa. [Poster]
  3. [P2]
    Choi, S., & Park, C. (2019). That’s One Small Step for a Man, One Giant Leap for Mankind. The 2nd Astro Poster Jamboree, Seoul, Korea.
  4. [P1]
    Choi, S., Park, H., Park, J., Chung, Y., Held, D., & Kim, D. (2014). Development of Smart Traps for Asian Ambrosia Beetles. UKC 2014, San Francisco, CA.