Results 51 to 60 of about 3,814,279 (400)
On the elements of the orbit of O∑ 387 [PDF]
Astronomische Nachrichten, 1898 n ...
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Catalogue of comets passing through perihelion in 2014
Вісник Астрономічної школи, 2013 The catalog of 80 comets, mostly shortperiodic, passing the perihelion of its orbit in 2014. The catalog includes three tables with circumstances of the passage of comets through perihelion, the elements of their orbits, and data concerning the discovery
K. I. Churyumov
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Trajectory Planning for Optical Satellite’s Continuous Surveillance of Geostationary Spacecraft
IEEE Access, 2021 This paper focuses on the trajectory planning that optical satellites approach the geostationary (GEO) spacecraft and the trajectory planning that the optical satellite flies around the GEO spacecraft for continuous surveillance of the GEO spacecraft The
Haitao Zhang +4 more
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Some additional results of the Hilda group orbital elements approximations [PDF]
arXiv, 2023 The quantitative characterization of amplitudes and periods of perturbations in orbital elements can help to our understanding the minor bodies dynamics, especially in case motion in vicinity of resonances. The main goal of this study is to present the new way of the orbital elements approximation by the results of numerical integration. We develop the
arxiv
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013 Methods for estimating the impact probability of asteroids 99942 Apophis and 2011 AG5 were implemented. The probability of a collision was assessed using two methods: The Monte Carlo method (statistical experiments), and as a ratio between the interval ...
Andrey E Derevyanka
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Warsaw Catalogue of cometary orbits: 119 near-parabolic comets [PDF]
A&A 567, A126 (2014), 2014 Context. The dynamical evolution of near-parabolic comets strongly depends on the starting values of the orbital elements derived from the positional observations. In addition, when drawing conclusions about the origin of these objects, it is crucial to control the uncertainties of orbital elements at each stage of the dynamical evolution. Aims.
arxiv +1 more source
Nonlinear Kalman Filtering for Improved Angles-Only Navigation Using Relative Orbital Elements
, 2017 This paper addresses the design and validation of an accurate estimation architecture for autonomous angles-only navigation in orbits of arbitrary eccentricity.
Joshua Sullivan, S. D’Amico
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Refractive elements for the measurement of the orbital angular momentum of a single photon [PDF]
, 2012 We have developed a mode transformer comprising two custom refractive optical elements which convert orbital angular momentum states into transverse momentum states.
Berkhout, G.C.G. +5 more
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Nilpotent Orbits and Commutative Elements
Journal of Algebra, 1997 AbstractLetWbe a simply laced Coxeter group with generating setS, and letWcdenote the subset consisting of those elements whose reduced expressions have no substrings of the formstsfor any non-commutings,t∈S. We give a root system characterization ofWc, and in the case whereWcorresponds to a finite Weyl group, show thatWcis a union of Spaltenstein ...
C.Kenneth Fan, John R. Stembridge
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, 1982 The 6‐31G* and 6‐31G** basis sets previously introduced for first‐row atoms have been extended through the second‐row of the periodic table. Equilibrium geometries for one‐heavy‐atom hydrides calculated for the two‐basis sets and using Hartree–Fock wave ...
M. Francl +6 more
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