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The rendezvous and landing missions are very significant for scientific explorations. In such missions, the navigation and guidance based on image data is very important. The spacecraft Hayabusa performed the descent flights to the target asteroid Itokawa in November of 2005. To accurately determine the spacecraft position, a landmark tracking scheme with the help of the ground operation was introduced...
Exploration in the low-gravity environment on an asteroid surface is best achieved by using a hopping rover. Robust and effective control of such a rover will require autonomous navigation, for which accurate localization is an important element. The combination of a hopping platform on an extraterrestrial, low-gravity environment presents unique challenges for the task of localization. In this paper,...
Hayabusa spacecraft performed the final descents and touchdowns twice in November 2005. In final descent phase, terrain alignment maneuvers were accomplished to control both altitude and attitude with respect to the surface by using four beams Laser Range Finder onboard. Then Hayabusa spacecraft made dynamic touchdowns the surface of the asteroid by the sampler system to collect samples automatically...
We present an overview of the laser altimeter(LIDAR) results for asteroid 25143 Itokawa. The trace of a 7×12-m elliptical beam spot made it possible to determine the local surface topography with an accuracy of a few meters in altitude, from a home position roughly 7km above the surface. Sequential detection of the altitude of the spacecraft during two orbital spans of descent for sampling allowed...
The MUSES-C mission is the world's first sample and return attempt to/from the near Earth asteroid. In deep space, it is hard to navigate, guide, and control a spacecraft on a real-time basis remotely from the earth mainly due to the communication delay. So autonomy is required for final approach and landing on an unknown body. It is important to navigate and guide a spacecraft to the landing point...
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