Attitude control system for the nano-astrometry satellite “Nano-JASMINE”

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Attitude control system for the nano-astrometry satellite “Nano-JASMINE”

Inamori, Takaya / Sako, Nobutada / Nakasuka, Shinichi

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This paper aims to present an attitude determination and control system for a nano-astrometry satellite which requires precise angular rate control. Focus of the research is methods to achieve the requirement.

Design/methodology/approach –

In order to obtain astrometry data, the satellite attitude should be controlled to an accuracy of 0.05°. Furthermore, attitude spin rate must be controlled to an accuracy of 4×10⁻⁷ rad/s during observation. In this paper the following unique ideas to achieve these requirements are introduced: magnetic disturbance compensation and rate estimation using star blurred images.

Findings –

This paper presents the feasibility of a high accurate attitude control system in nano- and micro-satellite missions.

Practical implications –

This paper presents a possibility of the application of nano-satellites to remote-sensing and astronomy mission, which requires accurate attitude control.

Originality/value –

Originalities of the paper are the methods to achieve the high accurate attitude control: magnetic disturbance compensation and angular rate estimation using star images.