Celestial mechanics and dynamical astronomy最新文献_第5页

Integrated trajectory optimization for Jupiter missions with single-satellite-aided capture 单卫星辅助捕获木星任务的综合轨迹优化

Celestial mechanics and dynamical astronomy Pub Date : 2023-11-07 DOI: 10.1007/s10569-023-10169-w

Quan Jing, Mingtao Li

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Coplanar circular-to-circular orbit transfer guidance with constant-thrust acceleration 恒推力加速度共面圆对圆轨道转移制导

Celestial mechanics and dynamical astronomy Pub Date : 2023-11-06 DOI: 10.1007/s10569-023-10168-x

Siddarth Kaki, Maruthi R. Akella

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Equilibria in an accelerated three-body problem 加速三体问题的平衡

Celestial mechanics and dynamical astronomy Pub Date : 2023-11-06 DOI: 10.1007/s10569-023-10166-z

Colin R. McInnes

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Triple collision orbits with nonzero initial velocities 初始速度非零的三重碰撞轨道

Celestial mechanics and dynamical astronomy Pub Date : 2023-11-01 DOI: 10.1007/s10569-023-10163-2

Kiyotaka Tanikawa, Seppo Mikkola

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Orbits of charged particles with an azimuthal initial velocity in a dipole magnetic field 偶极磁场中具有初始速度的带电粒子的轨道

Celestial mechanics and dynamical astronomy Pub Date : 2023-10-18 DOI: 10.1007/s10569-023-10167-y

Hanrui Pang, Siming Liu, Rong Liu

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Analyzing the structure of periodic orbit families that exist around asteroid (101955) Bennu 分析小行星(101955)Bennu周围的周期轨道族结构

Celestial mechanics and dynamical astronomy Pub Date : 2023-10-17 DOI: 10.1007/s10569-023-10164-1

Gavin M. Brown, Daniel J. Scheeres

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Mars orientation and rotation angles 火星方向和旋转角度

Celestial mechanics and dynamical astronomy Pub Date : 2023-10-01 DOI: 10.1007/s10569-023-10159-y

Marie Yseboodt, Rose-Marie Baland, Sébastien Le Maistre

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Correction: Secular orbital dynamics of the innermost exoplanet of the $$upsilon $$-Andromedæ system 更正:$$upsilon $$ -仙女座星系最内层系外行星的长期轨道动力学

Celestial mechanics and dynamical astronomy Pub Date : 2023-10-01 DOI: 10.1007/s10569-023-10150-7

Rita Mastroianni, Ugo Locatelli

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Metrics on space of closed orbits for near-Earth objects identification 用于近地天体识别的封闭轨道空间度量

Celestial mechanics and dynamical astronomy Pub Date : 2023-10-01 DOI: 10.1007/s10569-023-10165-0

A. Vananti, Moritz Meyer zu Westram, T. Schildknecht

{"title":"Metrics on space of closed orbits for near-Earth objects identification","authors":"A. Vananti, Moritz Meyer zu Westram, T. Schildknecht","doi":"10.1007/s10569-023-10165-0","DOIUrl":"https://doi.org/10.1007/s10569-023-10165-0","url":null,"abstract":"Abstract In the characterization of the space debris environment, the computation of the orbit of the debris objects is usually conducted by considering the association of short sequences of observations called tracklets. In case the orbits can be already determined with sufficient accuracy from single tracklets, it is necessary to define a criterion to decide if two calculated orbits correspond to the same object. One possibility is to introduce a definition of distance between orbits and to consider a threshold below which the two orbits are considered to be originating from the same object. The concept of distance is quite general and leaves room to different definitions. There are different ways to describe and to parameterize the space of the possible orbits. In this article, new metrics are proposed which extend distance definitions suggested in previous works. In these metrics in addition to orbital plane and orbital shape, also the position of the object along the orbit is taken into account. The obtained distances are scaled according to the orbit covariance. This has the advantage that the distance between orbits with different accuracy can be evaluated. The proposed metrics are then compared with existing common metrics to assess their applicability.","PeriodicalId":72537,"journal":{"name":"Celestial mechanics and dynamical astronomy","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135761396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Revisiting the computation of the critical points of the Keplerian distance 重述开普勒距离临界点的计算

Celestial mechanics and dynamical astronomy Pub Date : 2023-09-29 DOI: 10.1007/s10569-023-10161-4

Giovanni F. Gronchi, Giulio Baù, Clara Grassi

{"title":"Revisiting the computation of the critical points of the Keplerian distance","authors":"Giovanni F. Gronchi, Giulio Baù, Clara Grassi","doi":"10.1007/s10569-023-10161-4","DOIUrl":"https://doi.org/10.1007/s10569-023-10161-4","url":null,"abstract":"Abstract We consider the Keplerian distance d in the case of two elliptic orbits, i.e., the distance between one point on the first ellipse and one point on the second one, assuming they have a common focus. The absolute minimum $$d_{textrm{min}}$$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:msub> <mml:mi>d</mml:mi> <mml:mtext>min</mml:mtext> </mml:msub> </mml:math> of this function, called MOID or orbit distance in the literature, is relevant to detect possible impacts between two objects following approximately these elliptic trajectories. We revisit and compare two different approaches to compute the critical points of $$d^2$$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:msup> <mml:mi>d</mml:mi> <mml:mn>2</mml:mn> </mml:msup> </mml:math> , where we squared the distance d to include crossing points among the critical ones. One approach uses trigonometric polynomials, and the other uses ordinary polynomials. A new way to test the reliability of the computation of $$d_{textrm{min}}$$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:msub> <mml:mi>d</mml:mi> <mml:mtext>min</mml:mtext> </mml:msub> </mml:math> is introduced, based on optimal estimates that can be found in the literature. The planar case is also discussed: in this case, we present an estimate for the maximal number of critical points of $$d^2$$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:msup> <mml:mi>d</mml:mi> <mml:mn>2</mml:mn> </mml:msup> </mml:math> , together with a conjecture supported by numerical tests.","PeriodicalId":72537,"journal":{"name":"Celestial mechanics and dynamical astronomy","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135200114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0