Feasibility Study of Technology Demonstration Mission for Integrated Attitude-Orbit Control of Solar Sail

We are developing a micro solar sail called "PIERIS". The purpose of this project is to demonstrate the following two world-first technologies in Low Earth Orbit. The first technology is to control the external torque with a single gimbal motor. It will be possible to achieve a completely propellant-free Integrated Attitude-Orbit Control. The second technology is a sail structure that guarantees the accuracy of the Pyramid-Shaped sail membrane shape and reduces disturbance torque caused by membrane surface deformation. This project has been selected for the Feasibility-Study phase of the JAXA Small Satellite Rush Program and is scheduled for launch in FY2026 if approved to proceed to the next phase. We are currently conducting mission and system feasibility studies and developing a Bread Board Model.