Rendezvous to asteroid with highly uncertain ephemeris: Hayabusa2’s Ryugu-approach operation result

This paper describes the guidance and navigation technique used by Hayabusa2 for the asteroid rendezvous operation to reach Ryugu. The operation results, including the achieved guidance and navigation performance, are also summarized. Multiple assessment and navigation teams worked closely to provid...

Full description

Saved in:
Bibliographic Details
Published inAstrodynamics Vol. 4; no. 2; pp. 137 - 147
Main Authors Tsuda, Yuichi, Takeuchi, Hiroshi, Ogawa, Naoko, Ono, Go, Kikuchi, Shota, Oki, Yusuke, Ishiguro, Masateru, Kuroda, Daisuke, Urakawa, Seitaro, Okumura, Shin-ichiro
Format Journal Article
LanguageEnglish
Published Singapore Springer Singapore 01.06.2020
Subjects
Aerospace Technology and Astronautics
Control
Dynamical Systems
Engineering
Research Article
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
Vibration
trajectory optimization
optical navigation
spacecraft guidance
sample return
solar system exploration
Online AccessGet full text

Cover

More Information
Summary:This paper describes the guidance and navigation technique used by Hayabusa2 for the asteroid rendezvous operation to reach Ryugu. The operation results, including the achieved guidance and navigation performance, are also summarized. Multiple assessment and navigation teams worked closely to provide reliable navigation solutions with a short solution delivery cycle. Although the uncertainty of the Ryugu’s ephemeris was considerable before Hayabusa2’s arrival, a combination of radiometric-optical hybrid navigation and a stochastic-constrained optimum guidance method was able to achieve an accuracy of less than 100 m and 1 cm/s, and the arrival was precisely timed.
ISSN:2522-008X
2522-0098
DOI:10.1007/s42064-020-0074-9