8 Result(s)
within
Rosario López
English
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Article
Open AccessA Second-Order Closed-Form \(J_2\) Model for the Draper Semi-Analytical Satellite Theory
A second-order closed-form semi-analytical solution of the main problem of the artificial satellite theory ( \(J_2\) ...
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Chapter and Conference Paper
Hybrid Orbit Propagator Based on Neural Networks. Multivariate Time Series Forecasting Approach
The orbital trajectory of artificial satellites around the Earth requires frequent corrections in response to different perturbation forces. The necessary maneuvers can be designed in simulated space environme...
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Chapter and Conference Paper
Uncertainty Propagation Using Hybrid Methods
Small corrections in the argument of the latitude can be used to improve the accuracy of the SGP4 orbit propagator. These corrections have been obtained by applying the hybrid methodology for orbit propagation...
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Chapter and Conference Paper
Forecasting Satellite Trajectories by Interpolating Hybrid Orbit Propagators
A hybrid orbit propagator based on the analytical integration of the Kepler problem is designed to determine the future position and velocity of any orbiter, usually an artificial satellite or space debris fragme...
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Article
Deprit’s Elimination of the Parallax Revisited
An extension of Deprit’s elimination of the parallax is proposed. This extension takes advantage of the flexibility of the Lie-Deprit method, when the inverse of the Lie operator is applied in order to calcula...
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Article
PPKBZ9 \(\mathcal{A}, \mathcal{S}\mathcal{A}\) Two Orbit Propagators Based on an Analytical Theory
In the context of general perturbation theories, we analyze the motion of an artificial satellite around an Earth-like planet perturbed by the first eight zonal harmonic coefficients. By means of two Lie trans...
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Chapter and Conference Paper
MathATESAT: A Symbolic-Numeric Environment in Astrodynamics and Celestial Mechanics
The increase in the facilities of the general computer algebra system, in particular Mathematica, and hardware evolution have supplied us with the possibility of develo** a new environment called MathATESAT. Ou...
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Article
Mortality and socioeconomic deprivation in census tracts of an urban setting in Southern Europe
In southern European cities, research on deprivation and mortality inequalities using small-area analysis is recent. In many countries, the census tract (CT) is the smallest territorial unit for which populati...
