Study finds smaller solar sails more efficient for station-keeping around small asteroids
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[Submitted on 24 Jun 2026]
Summary
This study examines the use of different solar sail sizes for station-keeping spacecraft orbiting irregularly shaped asteroids. A rational agent using a decision tree optimization algorithm calculates necessary sail orientation to maintain orbit, accounting for non-ideal reflective properties and non-uniform gravitational fields. Results show smaller sails require fewer attitude changes but cannot maintain station on larger asteroids, while for sufficiently small asteroids, sails smaller than those on recent missions may be more appropriate. The findings suggest current solar sail technology is capable of enabling successful asteroid reconnaissance missions.
Source
Twitter / XStudy finds smaller solar sails more efficient for station-keeping around small asteroidsarxiv.orgKey quotes
· 5 pulledResults reveal a relation between sail and asteroid sizes and the attitude change frequency.
Smaller sails can sustain station-keeping with fewer attitude changes. However, they are not able to achieve this goal on larger asteroids.
For sufficiently small asteroids, sails smaller than those used on recent missions may be more appropriate for station-keeping.
These findings suggest that current solar sail technology is already capable of enabling successful asteroid reconnaissance missions.
The employment of solar sails enable a greater number of missions and target asteroids, given it is a cheaper propulsion method.
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