Observational Arc-Length Effect on Orbit Determination for Korea Pathfinder Lunar Orbiter in the Earth-Moon Transfer Phase Using a Sequential Estimation
In this study, the observational arc-length effect on orbit determination (OD) for the Korea Pathfinder Lunar Orbiter (KPLO) in the Earth-Moon Transfer phase was investigated. For the OD, we employed a sequential estimation using the extended Kalman filter and a fixed-point smoother. The mission per...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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The Korean Space Science Society
2019-12-01
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| Series: | Journal of Astronomy and Space Sciences |
| Subjects: | |
| Online Access: | https://doi.org/10.5140/JASS.2019.36.4.293 |
| _version_ | 1797369761173078016 |
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| author | Kim, Youngrok Song, Young-Joo |
| author_facet | Kim, Youngrok Song, Young-Joo |
| author_sort | Kim, Youngrok |
| collection | DOAJ |
| description | In this study, the observational arc-length effect on orbit determination (OD) for the Korea Pathfinder Lunar Orbiter (KPLO) in the Earth-Moon Transfer phase was investigated. For the OD, we employed a sequential estimation using the extended Kalman filter and a fixed-point smoother. The mission periods, comprised between the perigee maneuvers (PM) and the lunar orbit insertion (LOI) maneuver in a 3.5 phasing loop of the KPLO, was the primary target. The total period was divided into three phases: launch–PM1, PM1–PM3, and PM3–LOI. The Doppler and range data obtained from three tracking stations [included in the deep space network (DSN) and Korea Deep Space Antenna (KDSA)] were utilized for the OD. Six arc-length cases (24 hrs, 48 hrs, 60 hrs, 3 days, 4 days, and 5 days) were considered for the arc-length effect investigation. In order to evaluate the OD accuracy, we analyzed the position uncertainties, the precision of orbit overlaps, and the position differences between true and estimated trajectories. The maximum performance of 3-day OD approach was observed in the case of stable flight dynamics operations and robust navigation capability. This study provides a guideline for the flight dynamics operations of the KPLO in the trans-lunar phase. |
| first_indexed | 2024-03-08T17:51:29Z |
| format | Article |
| id | doaj.art-d113bb015fc54c05963e1da1e120940f |
| institution | Directory Open Access Journal |
| issn | 2093-5587 2093-1409 |
| language | English |
| last_indexed | 2024-03-08T17:51:29Z |
| publishDate | 2019-12-01 |
| publisher | The Korean Space Science Society |
| record_format | Article |
| series | Journal of Astronomy and Space Sciences |
| spelling | doaj.art-d113bb015fc54c05963e1da1e120940f2024-01-02T08:10:11ZengThe Korean Space Science SocietyJournal of Astronomy and Space Sciences2093-55872093-14092019-12-0136429330610.5140/JASS.2019.36.4.293Observational Arc-Length Effect on Orbit Determination for Korea Pathfinder Lunar Orbiter in the Earth-Moon Transfer Phase Using a Sequential EstimationKim, Youngrok0Song, Young-Joo1Korea Aerospace Research Institute, Daejeon 34133, KoreaKorea Aerospace Research Institute, Daejeon 34133, KoreaIn this study, the observational arc-length effect on orbit determination (OD) for the Korea Pathfinder Lunar Orbiter (KPLO) in the Earth-Moon Transfer phase was investigated. For the OD, we employed a sequential estimation using the extended Kalman filter and a fixed-point smoother. The mission periods, comprised between the perigee maneuvers (PM) and the lunar orbit insertion (LOI) maneuver in a 3.5 phasing loop of the KPLO, was the primary target. The total period was divided into three phases: launch–PM1, PM1–PM3, and PM3–LOI. The Doppler and range data obtained from three tracking stations [included in the deep space network (DSN) and Korea Deep Space Antenna (KDSA)] were utilized for the OD. Six arc-length cases (24 hrs, 48 hrs, 60 hrs, 3 days, 4 days, and 5 days) were considered for the arc-length effect investigation. In order to evaluate the OD accuracy, we analyzed the position uncertainties, the precision of orbit overlaps, and the position differences between true and estimated trajectories. The maximum performance of 3-day OD approach was observed in the case of stable flight dynamics operations and robust navigation capability. This study provides a guideline for the flight dynamics operations of the KPLO in the trans-lunar phase.https://doi.org/10.5140/JASS.2019.36.4.293korea pathfinder lunar orbiter (kplo)orbit determinationarc lengthsequential estimationtrans-lunar |
| spellingShingle | Kim, Youngrok Song, Young-Joo Observational Arc-Length Effect on Orbit Determination for Korea Pathfinder Lunar Orbiter in the Earth-Moon Transfer Phase Using a Sequential Estimation Journal of Astronomy and Space Sciences korea pathfinder lunar orbiter (kplo) orbit determination arc length sequential estimation trans-lunar |
| title | Observational Arc-Length Effect on Orbit Determination for Korea Pathfinder Lunar Orbiter in the Earth-Moon Transfer Phase Using a Sequential Estimation |
| title_full | Observational Arc-Length Effect on Orbit Determination for Korea Pathfinder Lunar Orbiter in the Earth-Moon Transfer Phase Using a Sequential Estimation |
| title_fullStr | Observational Arc-Length Effect on Orbit Determination for Korea Pathfinder Lunar Orbiter in the Earth-Moon Transfer Phase Using a Sequential Estimation |
| title_full_unstemmed | Observational Arc-Length Effect on Orbit Determination for Korea Pathfinder Lunar Orbiter in the Earth-Moon Transfer Phase Using a Sequential Estimation |
| title_short | Observational Arc-Length Effect on Orbit Determination for Korea Pathfinder Lunar Orbiter in the Earth-Moon Transfer Phase Using a Sequential Estimation |
| title_sort | observational arc length effect on orbit determination for korea pathfinder lunar orbiter in the earth moon transfer phase using a sequential estimation |
| topic | korea pathfinder lunar orbiter (kplo) orbit determination arc length sequential estimation trans-lunar |
| url | https://doi.org/10.5140/JASS.2019.36.4.293 |
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