Ronan Arraes Jardim Chagas
Since 2013, Ronan Arraes Jardim Chagas has been with the Space Systems Division of the Instituto Nacional de Pesquisas Espaciais (INPE). As his most significant accomplishment, he was the Mission Architect and the responsible technician of the attitude and orbit control subsystem (AOCS) of the Brazilian Satellite Amazonia-1, successfully launched in February 2021.
He has been working with Control Systems and Signal Processing for 15 years. During this time, he was involved in many projects related to those areas. He successfully embedded Kalman filters (Extended and Unscented) in many autonomous systems and developed state-of-art signal processing algorithms to perform estimation in distributed sensor networks.
He conducts several research projects at INPE. Those projects include artificial intelligence and advanced control techniques applied to the AOCS, space mission design optimization, advanced signal processing, and orbit analysis.
He is also a Julia language enthusiast. He has used it daily since 2013 to perform many activities related to his work. As his most significant project with this language, he developed a complete AOCS simulator to test and verify this subsystem. The simulation achieved outstanding performance and accuracy, given the orbital data collected from the satellite Amazonia-1.
He is the creator and maintainer of some important packages of the Julia language ecosystem: ReferenceFrameRotations.jl, SatelliteToolbox.jl, PrettyTables.jl, and others.
Sessions
This talk presents how we developed a general, adaptable satellite telemetry analysis system using the Julia language and its ecosystem. The system can fetch the telemetry packets from the mission database, convert the desired telemetry variables, and output a data frame with the information. From here, we can use all the power in Julia language to perform the complicated analysis often required to verify the attitude and orbit control subsystem health.
The SatelliteToolbox.jl ecosystem was created almost ten years ago to contain functions for solving satellite-related problems using the Julia language. Since then, it has become an essential asset for the Brazilian National Institute for Space Research (INPE) when analyzing space missions. This talk presents the ecosystem's main functions and shows case studies of demands put by the Brazilian space program that were solved using SatelliteToolbox.jl.