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Optimization of observing sequence based on nominal trajectories of symmetric observing configuration

Optimization of observing sequence based on nominal trajectories of symmetric observing... Astrodynamics Vol. 2, No. 1, 25{37, 2018 https://doi.org/10.1007/s42064-017-0009-2 Optimization of observing sequence based on nominal trajectories of symmetric observing con guration 1 1;2 1 Hongwei Yang , Gao Tang , and Fanghua Jiang (B) 1. School of Aerospace Engineering, Tsinghua University, Beijing 100084, China 2. Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA ABSTRACT KEYWORDS This paper presents the crucial method for obtaining our team's results in the 8th Global branch and bound Trajectory Optimization Competition (GTOC8). Because the positions and velocities of optimization spacecraft cannot be completely determined by one observation on one radio source, the symmetric observing branch and bound method for sequence optimization of multi-asteroid exploration cannot con guration be directly applied here. To overcome this diculty, an optimization method for searching GTOC the observing sequence based on nominal low-thrust trajectories of the symmetric observing low thrust con guration is proposed. With the symmetric observing con guration, the normal vector of the triangle plane formed by the three spacecraft rotates in the ecliptic plane periodically and approximately points to the radio sources which are close to the ecliptic plane. All possible observing opportunities are selected and ranked according to the nominal http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Astrodynamics Springer Journals

Optimization of observing sequence based on nominal trajectories of symmetric observing configuration

Yang, Hongwei; Tang, Gao; Jiang, Fanghua
Astrodynamics , Volume 2 (1): 13 – Mar 1, 2018
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Publisher
Springer Journals
Copyright
2017 Chinese Society of Theoretical and Applied Mechanics and Tsinghua University Press and Springer Nature Singapore Pte Ltd.
ISSN
2522-008X
eISSN
2522-0098
DOI
10.1007/s42064-017-0009-2
Publisher site
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Abstract

Astrodynamics Vol. 2, No. 1, 25{37, 2018 https://doi.org/10.1007/s42064-017-0009-2 Optimization of observing sequence based on nominal trajectories of symmetric observing con guration 1 1;2 1 Hongwei Yang , Gao Tang , and Fanghua Jiang (B) 1. School of Aerospace Engineering, Tsinghua University, Beijing 100084, China 2. Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA ABSTRACT KEYWORDS This paper presents the crucial method for obtaining our team's results in the 8th Global branch and bound Trajectory Optimization Competition (GTOC8). Because the positions and velocities of optimization spacecraft cannot be completely determined by one observation on one radio source, the symmetric observing branch and bound method for sequence optimization of multi-asteroid exploration cannot con guration be directly applied here. To overcome this diculty, an optimization method for searching GTOC the observing sequence based on nominal low-thrust trajectories of the symmetric observing low thrust con guration is proposed. With the symmetric observing con guration, the normal vector of the triangle plane formed by the three spacecraft rotates in the ecliptic plane periodically and approximately points to the radio sources which are close to the ecliptic plane. All possible observing opportunities are selected and ranked according to the nominal

Journal

Astrodynamics – Springer Journals

Published: Mar 1, 2018

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