A Feasible Study of <i>In-Situ</i> Measurements of Light Isotopes and Organic Molecules with High Resolution Mass Spectrometer MULTUM on the OKEANOS Mission

• ITO Motoo

  Kochi Institute for Core Sample Research, JAMSTEC

• OKADA Tatsuaki

  Institute of Space and Astronautical Science, JAXA Department of Aeronautics and Astronautics, The University of Tokyo

• KEBUKAWA Yoko

  Yokohama National University

• AOKI Jun

  Osaka University

• KAWAI Yosuke

  Osaka University

• MATSUMOTO Jun

  Institute of Space and Astronautical Science, JAXA

• CHUJO Toshihiro

  Institute of Space and Astronautical Science, JAXA

• NAKAMURA Ryosuke

  National Institute of Advanced Industrial Science and Technology (AIST)

• YANO Hajime

  Institute of Space and Astronautical Science, JAXA

• YOKOTA Sho-ichiro

  Osaka University

• TOYODA Michisato

  Osaka University

• YURIMOTO Hisayoshi

  Institute of Space and Astronautical Science, JAXA Hokkaido University

• WATANABE Motoki

  Aoyama Gakuin University

• IKEDA Ryota

  Aoyama Gakuin University

• KUBO Yuki

  Department of Aeronautics and Astronautics, The University of Tokyo

• GRAND Noel

  LISA, Université Paris-Est Créteil, Paris Diderot, Ecole Centrale Paris

• COTTIN Herve

  LISA, Université Paris-Est Créteil, Paris Diderot, Ecole Centrale Paris

• BUCH Arnaud

  Ecole Centrale Paris

• SZOPA Cyril

  University of Versailles Saint Quentin

• MORI Osamu

  Institute of Space and Astronautical Science, JAXA

Abstract

The OKEANOS mission utilizing the Solar Power Sail is one of the candidates of the strategic middle-class space exploration to the outer Solar System lead by the JAXA. The mission is planning to be launched in 2030's, and rendezvous for spectral observations and landing for in-situ measurements of light isotopes and organic molecules to a D or P type Jupitar Trojan asteroid in 2040's. The flagship instrument on board is a high-resolution mass spectrometry (HRMS) system together with suits of remote-sensing instruments. Through in-depth scientific observations, the OKEANOS mission will provide critical input to the key questions of (1) constraining planet formation/migration theories, and (2) inventory and distribution of volatiles in the Solar System. We have conducted experimental tests of a sample canister sealing by a metal seal knife-edge, sample canister-MULTUM test, gas chromatograph-MULTUM coupling test for organics, and H and N isotopic measurements in the atmospheric air. Current performances are (1) high mass resolution was 30,000 at m/z = 20, (2) sample canister system with a knife-edge metal seal kept 90 % of a released gas in 1 hour for Cu or Au gaskets with/without regolith, (3) error meets the required precision and accuracy for nitrogen isotopic measurement but for hydrogen. These experiment tests need to continue for our scientific proposes on the asteroids.

Journal

• TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN

  TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN 19 (4), 477-484, 2021

  THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

Keywords

• OKEANOS Mission
• Jupitar Trojan
• <i>In-Situ</i> Analysis
• Solar Power Sail
• HRMS

Details

• CRID: 1390288603145301888
• NII Article ID: 130008062313
• DOI: 10.2322/tastj.19.477
• ISSN: 18840485
• Web Site: https://www.jstage.jst.go.jp/article/tastj/19/4/19_19.477/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed