Initial Identification of Thrust and Orbit Elements for Continuous Thrust Spacecraft in Circular Orbit

Continuous thrust spacecraft in circular orbits have had a great influence on the identification and cataloging of space targets. Gaussian-type orbital element variational equations are simplified and approximated. Ground-based radar observation datasets are transformed into orbit elements datasets....

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Main Authors: Shuailong Zhao, Xuefeng Tao, Zhi Li
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Aerospace
Subjects:
Online Access:https://www.mdpi.com/2226-4310/10/12/1012
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author Shuailong Zhao
Xuefeng Tao
Zhi Li
author_facet Shuailong Zhao
Xuefeng Tao
Zhi Li
author_sort Shuailong Zhao
collection DOAJ
description Continuous thrust spacecraft in circular orbits have had a great influence on the identification and cataloging of space targets. Gaussian-type orbital element variational equations are simplified and approximated. Ground-based radar observation datasets are transformed into orbit elements datasets. The initial thrust and orbit elements are obtained by optimally solving the spatial parameter error sum of squares minimization problem with the Levenberg–Marquardt method. The simulation analysis is carried out under the high-precision orbit model, and the solution error of tangential acceleration is around 5 × 10<sup>−7</sup> m/s<sup>2</sup>, and that of normal acceleration is around 3 × 10<sup>−6</sup> m/s<sup>2</sup>; the accuracy of the semi-major axis is 350 m, and the accuracy of inclination is 0.095°. The method is applicable to the preliminary identification of thrust and orbit elements for circular orbit continuous thrust spacecraft and can provide reliable initial values for the subsequent precision orbit determination of such spacecraft.
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spelling doaj.art-e54cbdf5fe1d41d9abe24a9675a027952023-12-22T13:45:13ZengMDPI AGAerospace2226-43102023-12-011012101210.3390/aerospace10121012Initial Identification of Thrust and Orbit Elements for Continuous Thrust Spacecraft in Circular OrbitShuailong Zhao0Xuefeng Tao1Zhi Li2Graduate School, Space Engineering University, Beijing 101400, ChinaGraduate School, Space Engineering University, Beijing 101400, ChinaTaiyuan Satellite Launch Centre, Xinzhou 034000, ChinaContinuous thrust spacecraft in circular orbits have had a great influence on the identification and cataloging of space targets. Gaussian-type orbital element variational equations are simplified and approximated. Ground-based radar observation datasets are transformed into orbit elements datasets. The initial thrust and orbit elements are obtained by optimally solving the spatial parameter error sum of squares minimization problem with the Levenberg–Marquardt method. The simulation analysis is carried out under the high-precision orbit model, and the solution error of tangential acceleration is around 5 × 10<sup>−7</sup> m/s<sup>2</sup>, and that of normal acceleration is around 3 × 10<sup>−6</sup> m/s<sup>2</sup>; the accuracy of the semi-major axis is 350 m, and the accuracy of inclination is 0.095°. The method is applicable to the preliminary identification of thrust and orbit elements for circular orbit continuous thrust spacecraft and can provide reliable initial values for the subsequent precision orbit determination of such spacecraft.https://www.mdpi.com/2226-4310/10/12/1012continuous thrust spacecraftparameter identificationorbit determinationradar observation
spellingShingle Shuailong Zhao
Xuefeng Tao
Zhi Li
Initial Identification of Thrust and Orbit Elements for Continuous Thrust Spacecraft in Circular Orbit
Aerospace
continuous thrust spacecraft
parameter identification
orbit determination
radar observation
title Initial Identification of Thrust and Orbit Elements for Continuous Thrust Spacecraft in Circular Orbit
title_full Initial Identification of Thrust and Orbit Elements for Continuous Thrust Spacecraft in Circular Orbit
title_fullStr Initial Identification of Thrust and Orbit Elements for Continuous Thrust Spacecraft in Circular Orbit
title_full_unstemmed Initial Identification of Thrust and Orbit Elements for Continuous Thrust Spacecraft in Circular Orbit
title_short Initial Identification of Thrust and Orbit Elements for Continuous Thrust Spacecraft in Circular Orbit
title_sort initial identification of thrust and orbit elements for continuous thrust spacecraft in circular orbit
topic continuous thrust spacecraft
parameter identification
orbit determination
radar observation
url https://www.mdpi.com/2226-4310/10/12/1012
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AT xuefengtao initialidentificationofthrustandorbitelementsforcontinuousthrustspacecraftincircularorbit
AT zhili initialidentificationofthrustandorbitelementsforcontinuousthrustspacecraftincircularorbit