논문 상세보기

Analysis on Delta-Vs to Maintain Extremely Low Altitude on the Moon and Its Application to CubeSat Mission KCI 등재 SCOPUS

  • 언어ENG
  • URLhttps://db.koreascholar.com/Article/Detail/379145
서비스가 종료되어 열람이 제한될 수 있습니다.
한국우주과학회 (The Korean Space Science Society)
초록

This paper analyzes delta-Vs to maintain an extremely low altitude on the Moon and investigates the possibilities of performing a CubeSat mission. To formulate the station-keeping (SK) problem at an extremely low altitude, current work has utilized real-flight performance proven software, the Systems Tool Kit Astrogator by Analytical Graphics Inc. With a high-fidelity force model, properties of SK maneuver delta-Vs to maintain an extremely low altitude are successfully derived with respect to different sets of reference orbits; of different altitudes as well as deadband limits. The effect of the degree and order selection of lunar gravitational harmonics on the overall SK maneuver strategy is also analyzed. Based on the derived SK maneuver delta-V costs, the possibilities of performing a CubeSat mission are analyzed with the expected mission lifetime by applying the current flight-proven miniaturized propulsion system performances. Moreover, the lunar surface coverage as well as the orbital characteristics of a candidate reference orbit are discussed. As a result, it is concluded that an approximately 15-kg class CubeSat could maintain an orbit (30–50 km reference altitude having ±10 km deadband limits) around the Moon for 1–6 months and provide almost full coverage of the lunar surface.

목차
1. INTRODUCTION
2. TARGETING PROBLEM FORMULATION FORSTATION-KEEPING MANEUVER
3. SIMULATION SETUP AND ASSUMPTIONS
4. RESULTS AND DISCUSSIONS
    4.1 Selection of Proper Degree and Order of Lunar NonsphericalGravitational Harmonics
    4.2 Delta-V Requirements with Respect to DifferentReference Orbits
    4.3 Application to CubeSat Mission Feasibilities
5. CONCLUSIONS
REFERENCES
저자
  • Young-Joo Song(Lunar Exploration Program Office, Korea Aerospace Research Institute)
  • Donghun Lee(Lunar Exploration Program Office, Korea Aerospace Research Institute) Corresponding Author
  • Young-Rok Kim(Lunar Exploration Program Office, Korea Aerospace Research Institute)
  • Ho Jin(School of Space Research, Kyung Hee University)
  • Young-Jun Choi(Space Science Division, Korea Astronomy and Space Science Institute/Univsesity of Science and Technology)