Abstract
This paper summarizes the attitude determination and control operation of IKAROS. IKAROS achieved the world’s first interplantery solar sailing in 2010, in which the attitude determination and control system (ADCS) worked as an essential element of the spacecraft operation. IKAROS is a spinner spacecraft equipped with a very large and flexible sail expanded by centrifugal force. IKAROS is also a low cost and piggy-back mission. Hence unique set of attitude determination system and actuators are adopted, which successfully provide the sufficient performance under limited resource. This paper introduces key technologies and achievements of the IKAROS ADCS covering sun-Earth based attitude determination, Gas-liquid phase equilibrium reaction control system, Reflectance control devices. The ADCS-related operation results such as sail deployment and cruising phase operation are also summarized.
