Flight Results of ESTCube-1 Attitude Determination System
| Autor: | Johan Kutt, Andris Slavinskis, Jaan Viru, Erik Kulu, Mart Noorma, Indrek Sünter, Henri Kuuste, Hendrik Ehrpais |
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| Rok vydání: | 2016 |
| Předmět: |
020301 aerospace & aeronautics
Engineering Earth's orbit business.industry Magnetometer Mechanical Engineering Attitude and heading reference system Aerospace Engineering Gyroscope 02 engineering and technology Kalman filter 01 natural sciences law.invention Software 0203 mechanical engineering law Attitude determination 0103 physical sciences General Materials Science CubeSat business 010303 astronomy & astrophysics Simulation Civil and Structural Engineering |
| Zdroj: | Journal of Aerospace Engineering. 29 |
| ISSN: | 1943-5525 0893-1321 |
| Popis: | This paper presents the characterization and in-orbit validation of the ESTCube-1 attitude determination system (ADS). ESTCube-1 is a one-unit CubeSat built by students and launched on May 7, 2013, to a Sun-synchronous, 700-km, polar low Earth orbit. Its primary mission is to centrifugally deploy a tether as a part of the first in-orbit demonstration of electric solar wind sail (i.e., E-sail) technology. The ADS uses magnetometers, gyroscopic sensors, Sun sensors, and an unscented Kalman filter for attitude determination. Here the performance of commercial off-the-shelf (COTS) sensors and results from tuning the system is shared; recalibration, software, and Kalman filter adjustments. The system is validated by comparing the attitude determined by the on-board ADS with the attitude determined from on-board camera images. Uncertainty budgets for both attitude determination methods are estimated. The expanded uncertainty of comparison (95% confidence level, k=2) is 1.75° and the maximum difference b... |
| Databáze: | OpenAIRE |
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