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- W2335305890 abstract "This paper introduces the flight dynamics operations of KOMPSAT-2, and summarizes the long-term orbital evolution and maintenance throughout the 5 years. In case of KOMPSAT-2, orbit determination, orbit prediction, and fuel estimation is carried out on a daily basis. And, most routine tasks are fully automated in order to reduce the human error, and to maximize the operational efficiency. With the operational results from daily activities, the orbital characteristics is examined and compared with theoretical orbit variation. In this paper, the orbital overlapping solution has been examined in order to check the accuracy level of the precise orbit determination. Using the 20 IGS station data and broadcasting GPS ephemeris as well as GPS pseudo-range and carrier phase data from KOMPSAT-2 flight data, the POD accuracy satisfies approximately 2-3 meter RSS in one sigma. This paper also describes the recent orbit maneuver activities, which includes maneuver planning, execution, and its evaluation. The objective of orbit maneuver was to change the LTAN (local time of ascending node) indirectly with inclination offset from ideal sun-synchronous orbit. The total 17 times thruster firings were successfully executed, and the results of orbit maneuver were almost same as initially planned and expected." @default.
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- W2335305890 date "2012-03-27" @default.
- W2335305890 modified "2023-09-26" @default.
- W2335305890 title "Analysis on the Long-term Orbital Evolution and Maintenance of KOMPSAT-2" @default.
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- W2335305890 doi "https://doi.org/10.2514/6.2012-1259558" @default.
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