Pascal Parraud

Pascal Parraud
CS SI, France, Toulouse · BU E-SPACE & Geo Information

PhD, Aerothermodynamics

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8
Publications
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57
Citations

Publications

Publications (8)
Conference Paper
Full-text available
Semi-analytical propagation techniques are of great interest, as they aim to combine the accuracy of numerical techniques with the speed of analytical methods. Amongst them, the Draper Semi-Analytical Satellite Theory (DSST) stands out, with its extensive treatment of perturbations, its exibility and also its maturity. Unfortunately DSST was for l...
Conference Paper
Full-text available
Verification of the java Orekit implementation of the Draper Semi-analytical Satellite Theory (DSST) is discussed. The Orekit library for space flight dynamics has been published under the open-source Apache license V2. The DSST is unique among analytical and semi-analytical satellite theories due to the scope of the included force models. However,...
Conference Paper
Full-text available
SKAT is a station-keeping simulator, which aims at building and evaluating different Orbit Maintenance Strategies for LEO and GEO spacecrafts of interest to EUMETSAT. SKAT enables to: 1) propagate orbits over long time spans, accounting for realistic effects, 2) automatically introduce maneuvers in the propagation process, according to control targ...
Article
Full-text available
This paper presents a new way to deal with transition matrices handling in variational equations. While working simultaneously on several problems dealing with orbit propagation: low-thrust trajectories and orbit determination, we implemented a feature allowing to add user equations to a propagator in order to solve the first problem. Then it appea...
Conference Paper
Full-text available
The Orekit library is a space flight dynamics library developed since 2002 by CS. It was operationally used during the Jules Verne ATV mission. Since 2008, the library is freely available as an open-source product under the terms of the business-friendly Apache V2.0 license. Given the small size of the market and the still high need for advanced ta...

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Projects

Project (1)
Project
Orekit is a low level space dynamics library written in Java and distributed as Free and Open-Source Software (FOSS) under the permissive Apache V2 license. It has gained widespread recognition since its release in 2008.