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Analytical representations of precise orbit predictions for Earth orbiting space objects
Advances in Space Research, 2017Abstract Accurate orbits of Earth orbiting space objects are usually generated from an orbit determination/prediction process using numerical integrators, and presented to users in a tabulated form or a state vector including force model parameters. When dealing with hundreds of thousands of space objects such as in the space conjunction assessment ...
Jizhang Sang +4 more
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Orbit prediction and shuttle rendezvous strategy for eureca
Acta Astronautica, 1983The European Retrievable Carrier (EURECA) is a platform to be launched and retrieved by the Space Shuttle. An analytical approach is presented for EURECA to execute the first part of the rendezvous manuevers. As part of the solution a new drag perturbation theory is developed, which includes analytical air density models and aerodynamic cross sections.
Klinkrad, H., Janin, G.
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A discussion on orbital analysis - Some problems of orbital prediction
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1967Attention is paid to the problem of predicting accurately (a) the orbital elements of a balloon satellite over long periods of time, and (b) the time the satellite will pass through a given point in the orbit, a few days or weeks in advance of the event.
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Preoperative imaging to predict orbital invasion by tumor
Head & Neck, 2000Our purpose was to examine the accuracy of preoperative imaging in assessing tumor invasion of the orbit and nasolacrimal system.Nineteen preoperative CT and 17 preoperative MR images from patients at risk for orbital invasion were retrospectively reviewed.
M D, Eisen +5 more
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The prediction of satellite orbits
1963In this paper we develop a perturbation method and apply it to the prediction of orbits of earth satellites that are disturbed by various external forces. The theory of resonances and stable orbit configurations, possible when sunlight pressure is important, are also analyzed.
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Molecular Orbital Predictions of Organic Spectra
The Journal of Chemical Physics, 1950The energies of the first two to five electronic transitions of 16 conjugated molecules are predicted as simple one-electron LCAO molecular orbital transitions (with overlap included). Assignments of the observed levels to the predicted levels are made. Qualitative agreement is good when S=0.25 and β=23,000 cm−1 for ring systems.
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Low-Orbit Satellite Orbit Prediction Algorithm Based on Near-Polar Circular Orbit
Proceedings of the 3rd International Symposium on Automation, Information and Computing, 2022Delu Wei +4 more
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From Orbital Models to Accurate Predictions
2015Basic understanding and qualitative prediction of the isotropic magnetic coupling between two magnetic centers can be obtained with two well-established valence-only models. This chapter discusses the Kahn–Briat and Hay–Thibeault–Hoffmann models, which have been (and still are) of fundamental importance for understanding the basics of magnetism in ...
Coen de Graaf, Ria Broer
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ORBIT DIFFERENTIAL CORRECTION - TRACKING PROGRAM. VOLUME 3. SATELLITE ORBIT PREDICTION PROGRAM
1966Abstract : This document presents the formulation, computational logic, and coding information developed for the purpose of tracking an artificial earth satellite in an open-loop mode. The program was developed as a FORTRAN IV, IBM 7094 program which uses the standard North American Aviation monitor system (NAASYS version 13).
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Telstar orbit prediction method - Accuracy comparison with other orbit prediction methods.
AIAA Journal, 1966openaire +1 more source