| Budget Amount *help |
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2021: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2018: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Outline of Final Research Achievements |
This research aims to realize autonomous rendezvous guidance and navigation to very distant celestial bodies. As "needs for high autonomy" and "strong purturbations" are typical characteristics for rendezvous to far distant bodies or to spacecraft flying in the vicinity of such bodies, they are precisely implemented into the dynamical model to build a rendezvous navigation theory, and to conduct numerical experiments. The template matching method with celestial object contours based on the VCC method and the active terrain-relative navigation algorithm that places multiple small artificial landmarks on the surface are proposed as autonomous, reliable, and real-time optical navigation algorithms. The effectiveness of both methods was evaluated using actual observation data from the asteroid explorer Hayabusa2. Progress has also been made in mission conception using these navigation methods and extraction of key technologies for it.
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