Journal of Positioning, Navigation, and Timing (J Position Navig Timing; JPNT)
Indexed in KCI (Korea Citation Index)
OPEN ACCESS, PEER REVIEWED
pISSN 2288-8187
eISSN 2289-0866

Design of Orbit Simulation Tool for Lunar Navigation Satellite System

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CONTENTS

Research article

Citation: Jeong, H., Park, J., Song, J., Kang, M., & Kee, C. 2023, Design of Orbit Simulation Tool for Lunar Navigation Satellite System, Journal of Positioning, Navigation, and Timing, 12, 335-342.

Journal of Positioning, Navigation, and Timing (J Position Navig Timing) 2023 December, Volume 12, Issue 4, pages 335-342. https://doi.org/10.11003/JPNT.2023.12.4.335

Received on 26 September 2023, Revised on 31 October 2023, Accepted on 14 November 2023, Published on 15 December 2023.

License: Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/bync/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Design of Orbit Simulation Tool for Lunar Navigation Satellite System

Hojoon Jeong1, Jaeuk Park1, Junwon Song2, Minjae Kang2, Changdon Kee1†

1Department of Aerospace Engineering and the Institute of Advanced Aerospace Technology, Seoul National University, Seoul 08826, Korea

2Interdisciplinary Program in Space Systems, Seoul National University, Seoul 08826, Korea

†Corresponding Author: E-mail, kee@snu.ac.kr; Tel, +82-2-880-8052; Fax, +82-2-878-0559

Abstract

Lunar Navigation Satellite System refers to a constellation of satellite providing PNT services on the moon. LNSS consists of main satellite and navigation satellites. Navigation satellites orbiting around the moon and a main satellite moves the area between the moon and the L2 point. The navigation satellite performs the same role as the Earth’s GNSS satellite, and the main satellite communicates with the Earth for time synchronization. Due to the effect of the non-uniform shape of the moon, it is necessary to focus on the influence of the lunar gravitational field when designing the orbit simulation for navigation satellite. Since the main satellite is farther away from the moon than the navigation satellite, both the earth’s gravity and the moon’s gravity must be considered simultaneously when designing the orbit simulation for main satellite. Therefore, the main satellite orbit simulation must be designed through the three-body problem between the Earth, the moon, and the main satellite. In this paper, the orbit simulation tool for main satellite and navigation satellite required for LNSS was designed. The orbit simulation considers the environment characteristics of the moon. As a result of comparing long-term data (180 days) with the commercial program GMAT, it was confirmed that there was an error of about 1 m.

Keywords

LNSS, orbit simulation tool, NRHO, ELFO

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Acknowledgments

This research was supported by Unmanned Vehicles Core Technology Research and development Program through the National Research Foundation of Korea (NRF), Unmanned Vehicle Advanced Research Center (UVARC) funded by the Ministry of Science and ICT, the Republic of Korea, contracted through by SNU Future Innovation Institute (No. 2020M3C1C1A01086407). and this work was supported by Future Space Navigation & Satellite Research Center through the National Research Foundation funded by the Ministry of Science and ICT, the Republic of Korea (2022M1A3C2074404). This research was supported (in part) by the Institute of Advanced Aerospace Technology at Seoul National University. The Institute of Engineering Research at Seoul National University provided research facilities for this work.

Author contributIons

Conceptualization, H.J., methodology, H.J. and J.P., software, J.P., H.J and J.S., validation, H.J. and J.P., formal analysis, H.J. and J.P., investigation, J.P., H.J. and J.S., resources, H.J., and J.P., data curation, H.J., J.S., and M.K. writing—original draft preparation, H.S., and C.K., writing—review and editing, H.J.; visualization, H.J., supervision, C.K.

Conflicts of interest

The authors declare no conflict of interest.