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

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• 作者：Toshihiro Chujo ; ¹ ; ^{chujo.toshihiro@ac.jaxa.jp" class="auth_mail" title="E-mail the corresponding author} ; Yuichi Tsuda² ; ^{tsuda.yuichi@jaxa.jp" class="auth_mail" title="E-mail the corresponding author} ; Yukio Shimizu³ ; ^{shimizu.yukio@jaxa.jp" class="auth_mail" title="E-mail the corresponding author} ; Makoto Yoshikawa² ; ^{yoshikawa.makoto@jaxa.jp" class="auth_mail" title="E-mail the corresponding author} ; Hajime Yano⁴ ; ^{yano.hajime@jaxa.jp" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Planetary protection ; Asteroid sample return ; Mars impact probability
• 刊名：Advances in Space Research
• 出版年：2016
• 出版时间：1 May 2016
• 年：2016
• 卷：57
• 期：9
• 页码：1991-2002
• 全文大小：2295 K

文摘

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.