India achieved a significant milestone on August 23rd 2023, becoming the fourth country to accomplish a soft landing on the Moon. This paper presents the powered descent trajectory design for the Chandrayaan-3 mission. The optimization framework is based on pseudospectral Radau collocation, and controllability-based waypoint refinement is employed to further enhance the robustness of the trajectory against state and control perturbations. Furthermore, the trade-off between fuel consumption and robustness is explicitly quantified, providing insights into the practical considerations of mission planning.
Cite
@article{arxiv.2511.03594,
title = {Powered Descent Trajectory Optimization of Chandrayaan-3 using Radau Collocation and Controllable Sets},
author = {Suraj Kumar and Aditya Rallapalli and Ashok Kumar Kakula and Bharat Kumar GVP},
journal= {arXiv preprint arXiv:2511.03594},
year = {2025}
}
Comments
6 pages, 6 figure, Accepted for publication in Indian Control Conference 2025