Bryan CazabonneCS Group · Flight Dynamics and Science
Bryan Cazabonne
Master of Science
About
8
Publications
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Citations
Introduction
Bryan Cazabonne was born in Tarbes, France, in 1995. In 2016 he graduated from the University of Toulouse Paul Sabatier with a Bachelor’s Degree in Physics. In 2018 he obtained a Master Degree in Space Technologies and Instrumentation at the same University. Bryan Cazabonne currently works at CS GROUP on orbit determination, orbit propagation, and navigation topics.
Skills and Expertise
Education
September 2016 - September 2018
September 2013 - September 2016
Publications
Publications (8)
Orbit Determination is a technique used to estimate the position of a satellite from its observable measurements. Missing or incorrect modeling of troposphere and ionosphere delays is one of the major error source in space geodetic techniques such as Global Navigation Satellite Systems (GNSS). Accurate computation of these two delays is a mandatory...
Space agencies generally use numerical methods to meet their orbit determination needs. Due to the ever increasing number of space objects, the development of new orbit determination methods becomes essential. DSST is an orbit propagator based on a semi-analytical theory. It combines the accuracy of numerical propagation and the speed of analytical...
Earth orbital space suffers from the ever increasing count of space objects, including operational satellites and space debris. Space system operations rely on the management of vast catalogs of objects to avoid any damaging collision. NORAD (North American Aerospace Defense Command) and NASA (National Aeronautics and Space Administration) both mai...
The paper presents an open-source orbit determination application based on the Draper Semi-analytical Satellite Theory (DSST) and a recursive filter, the Extended Semi-analytical Kalman Filter (ESKF). The ESKF reconciles the conflicting goal of the DSST perturbation theory (i.e., large step size) and the Extended Kalman Filter (EKF) theory (i.e., r...
Space objects catalog maintenance demands an accurate and fast Orbit Determination (OD) process to cope with the ever increasing number of observed space objects. The development of new methods, that answer the two previous problems, becomes essential.
Presented as an alternative to numerical and analytical methods, the Draper Semi-analytical Sat...
Earth orbital space suffers from the ever increasing count of space objects, including operational satellites and space debris. Space system operations rely on the management of vast catalogs of objects to avoid any damaging collision. NORAD (North American Aerospace Defense Command) and NASA (National Aeronautics and Space Administration) both mai...
Questions
Question (1)
Hi, I use two models to calculate the atmosphere density during a satellite orbit propagation. The two models are NRLMSISE-00 and DTM-2000. To feed the models I'm using Space Weather Data provided by Celestrak (https://celestrak.com/SpaceData/SW-Last5Years.txt). I was surprised the see that both adjusted and observed data are provided in this file. I found that observed data must be used for NRLMSISE-00 model. However, I didn't see any information about which type of data to use (i.e., adjusted or observed) for DTM-2000. Does anyone have the answer or a reference?
Projects
Projects (2)
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.
Understand the application of DSST to batch and recursive estimation of the constants in the DSST. Refinement of the DSST models
