Results 281 to 290 of about 143,162 (326)

Initial orbit determination using camera array

2017 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 2018
Optical measuring angle data can be used in initial orbit determination. However, optical system has its magnitude limit, the initial orbits can not be determined when targets’ magnitudes are above the limited magnitude or the relative size of the target can not meet the resolution requirements. In order to expand the observable range of optical system
RunFeng Wang, HaiRui Zeng, TingHua Zhang, YingChun LI, Biao Yang   +4 more
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A new method of initial orbit determination

Celestial Mechanics, 1986
We present a new method of initial orbit determination for angles-only data. The technique is applicable with only three data sets but the formalism can incorporate arbitrarily large amounts of data. The algorithm rests on the fact that the orbital plane is usually very well determined, as a consequence of the central nature of the gravitational force,
B. G. Morton, L. G. Taff
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Probabilistic Initial Orbit Determination Using Gaussian Mixture Models

Journal of Guidance, Control, and Dynamics, 2013
The most complete description of the state of a system at any time is given by knowledge of the probability density function, which describes the locus of possible states conditioned on any available measurement information. When employing optical data, the concept of the admissible region provides a physics-based region of the range/range-rate space ...
Kyle J. DeMars, Moriba K. Jah
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Multiple Shooting Method for Initial Satellite Orbit Determination

Journal of Guidance, Control, and Dynamics, 2010
After a satellite has been launched, the determination of its initial orbit is one of the primary tasks to be accomplished by mission control: e.g., in order to prepare for high-precision orbit determination or orbital transfers. For this purpose, tracking measurements are acquired by ground stations, which are the basis for the determination of the ...
Simon M. Lenz, H. Georg Bock, Johannes P. Schlöder, Ekaterina A. Kostina, Gottlob Gienger, Gerald Ziegler   +5 more
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Initial Orbit Determination Results for Jason-1: Towards a 1 cm Orbit

Navigation, 2003
The U.S/France Jason-1 oceanographic mission is carrying state-of-the-art radiometric tracking systems (GPS and Doris) to support precise orbit determination (POD) requirements. The performance of the systems is strongly reflected in the early POD results.
BRUCE HAINES, WILLY BERTIGER, SHAILEN DESAI, DA KUANG, TIM MUNSON, LARRY YOUNG, PASCAL WILLIS   +6 more
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Correlation of Optical Observations of Earth-Orbiting Objects and Initial Orbit Determination

Journal of Guidance, Control, and Dynamics, 2012
For optical observations of Earth-orbiting objects, multiple observationsmust be combined to determine the orbit of the observed object.Whether two arbitrary tracks are of the same object, however, is generally unknown a priori, and solving this problem with traditional approaches requires iterative procedures that do not guarantee convergence.
K. Fujimoto, D. J. Scheeres
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Angles-Only, Ground-Based, Initial Orbit Determination

1984
Abstract : Over the past few years, passive, ground-based, angles-only initial orbit determination has hd a thorough analytical, numerical, experimental, and creative re-examination. This report presents the numerical culmination of this effort and contains specific recommendations for which of several techniques one should use on the different subsets
S. A. Stansfield, P. M. S. Randall, L. G. Taff   +2 more
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Doppler-Only Initial Orbit Determination for an Orbiting Transmitter

AIAA SCITECH 2022 Forum, 2022
John Christian, Christopher Ertl, Kenneth Horneman, Alan Lovell   +3 more
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Analytic characterization of measurement uncertainty and initial orbit determination on orbital element representations

Celestial Mechanics and Dynamical Astronomy, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Weisman, R. M., Majji, M., Alfriend, K. T.   +2 more
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Direct Uncertainty Estimates from Angles-Only Initial Orbit Determination

Journal of Guidance, Control, and Dynamics, 2018
Initial orbit determination methods yield only a point solution, with no information about the quality of or confidence in the solution.
Christopher R. Binz, Liam M. Healy
openaire   +1 more source