As small celestial body exploration advances, higher requirements with regard to system
safety and landing precision are proposed for future landing and sample return missions …

Precision landing on large and small planetary bodies is a technology of utmost importance
for future human and robotic exploration of the solar system. In this context, the Zero-Effort …

A renewed scientific interest has been growing in the exploration of small asteroids in
addition to larger planetary bodies such as Mars, since their weaker gravitational field …

The problem under investigation is how to rapidly design a propellant optimal powered
descent trajectory to land a spacecraft on an arbitrarily shaped asteroid, subject to realistic …

This paper presents a new method for rapid generation of time-optimal trajectories for
asteroid landing via convex optimization. To overcome the nonconvex difficulty due to the …

This Paper presents a fast homotopy method for solving fuel-optimal asteroid landing
trajectories. Similar to the traditional homotopy method, the fuel-optimal control problem is …

The attitude tracking operations of an on-orbit spacecraft with degraded performance
exhibited by potential actuator uncertainties (including failures and misalignments) can be …

The recently proposed flexible probe for asteroids provides a novel scheme for landing on
low-gravity surface. To understand the feasible initial condition of the flexible probe's …

This paper proposes a new nonlinear guidance algorithm applicable for asteroid both
hovering and landing. With the new guidance, a spacecraft achieves its target position and …

There are usually larger uncertainties in the atmosphere density of Mars and the
aerodynamic parameters of entry vehicles, which inevitably degrades the performance of …