Mars impact probability analysis for the Hayabusa-2 NEO sample return mission

This paper reports the results of an analysis of the Mars impact probability for the Hayabusa-2 spacecraft to comply with the COSPAR planetary protection requirements. Since Hayabusa-2 is equipped with an ion engine system and its trajectory accommodates the non-ballistic trajectory, effective analy...

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Veröffentlicht in:	Advances in space research 2016-05, Vol.57 (9), p.1991-2002
Hauptverfasser:	Chujo, Toshihiro, Tsuda, Yuichi, Shimizu, Yukio, Yoshikawa, Makoto, Yano, Hajime
Format:	Artikel
Sprache:	eng
Schlagworte:	Asteroid sample return Impact analysis Ion engines Mars (planet) Mars impact probability Mars missions Planetary protection Sample return missions Space research Spacecraft Trajectories
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Beschreibung
Zusammenfassung:	This paper reports the results of an analysis of the Mars impact probability for the Hayabusa-2 spacecraft to comply with the COSPAR planetary protection requirements. Since Hayabusa-2 is equipped with an ion engine system and its trajectory accommodates the non-ballistic trajectory, effective analysis methods are introduced. The results show that the Mars impact probability is sufficiently low for the Hayabusa-2 mission to fully comply with the COSPAR planetary protection requirements.
ISSN:	0273-1177 1879-1948
DOI:	10.1016/j.asr.2015.07.042