Ballistic Capture Approach and its Application to Martian Moons eXploration (MMX)

2020 Fiscal Year Annual Research Report

• Project/Area Number: 19F18371
• Research Institution: Japan Aerospace EXploration Agency
• Principal Investigator: 川勝 康弘 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 教授 (80373439)
• Co-Investigator(Kenkyū-buntansha): DEI TOS DIOGENE ALESSAND 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 外国人特別研究員
• Project Period (FY): 2019-04-25 – 2021-03-31
• Keywords: Trajectory optimization / Nonlinear astrodynamics / Ballistic capture / Dynamical system theory / Low-thrust transfer

Outline of Annual Research Achievements

a) MMX: I adjusted the ballistic capture model and computed quasi-periodic orbits near Phobos. I investigated the orbit design and demonstrated that the baseline QSOs can be maintained with as low as 6.3 m/s a month. Impulsive transfers indicates budget ~100 m/s and ToF between 7 hr and 2 days.

b) DESTINY+: I optimized the GTO-to-Moon spiral ascent and the interplanetary cruise to Phaethon under strict operational constraints. High-fidelitysolutions give robustness against programmatic and operational delays.

a) EQUULEUS: I provided the end-to-end trajectory product, accounting for realistic high-fidelity models and operational constraints. I shed light to the solution structure for optimal lunar transfers, creating a database oftransfers compatible with the launch parameters.

Research Progress Status

令和2年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和2年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] The candidate collaborated with JPL(米国)
  • Country Name: U.S.A.
  • Counterpart Institution: The candidate collaborated with JPL
• [Journal Article] Multiple-Target Low-Thrust Interplanetary Trajectory of DESTINY+ (2021)
  • Author(s): O. Celik, D. A. Dei Tos, T. Yamamoto, N. Ozaki, Y. Kawakatsu, and C. H. Yam
  • Journal Title: J. Spacecr. Rockets Volume: - Pages: -
  • DOI: 10.2514/1.A34804
  • Peer Reviewed
• [Journal Article] Trajectory Design and Maintenance of the Martian Moons eXploration Mission Around Phobos (2020)
  • Author(s): N. Baresi, D. A. Dei Tos, H. Ikeda, and Y. Kawakatsu
  • Journal Title: J. Guid. Control. Dyn. Volume: - Pages: -
  • DOI: 10.2514/1.G005041
  • Peer Reviewed
• [Presentation] Genetic optimization for the orbit maintenance of libration point orbits with applications to EQUULEUS and LUMIO (2020)
  • Author(s): D. A. Dei Tos and N. Baresi
  • Organizer: AIAA Scitech Forum 2020, Orlando FL US
  • Int'l Joint Research
• [Presentation] Operations-driven low-thrust trajectory optimization with applications to DESTINY+ (2020)
  • Author(s): D. A. Dei Tos, T. Yamamoto, N. Ozaki, Y. Tanaka, F. Gonzalez-Franquesa, N. Pushparaj, O.Celik, T. Takashima, K. Nishiyama, and Y. Kawakatsu
  • Organizer: AIAA Scitech Forum 2020, Orlando FL US
  • Int'l Joint Research