Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
PRELIMINARY STUDY OF A SPACE MISSION FOR OBSERVING PLASMA BUBBLES IN THE IONOSPHERE USING GNSS-RO
Submission Author:
Vinicius Fernandes , SP
Co-Authors:
Vinicius Fernandes, Rogério Pirk, Willer Gomes dos Santos
Presenter: Vinicius Fernandes
doi://10.26678/ABCM.COBEM2023.COB2023-0191
Abstract
Equatorial plasma bubbles (EPB) result from the interaction of solar winds, twilight, ionosphere, and Earth's magnetosphere. Understanding these phenomena is crucial for developing radio communication systems that interact with the ionosphere. Global Navigation Satellite System Radio Occultation (GNSS-RO) technology has been employed to study EPB. This work aims to conduct a preliminary study of a mission using the ARCADIA method for model-based system engineering and methodology of space mission analysis and design. The primary mission objective is to observe EPB using GNSS-RO. Mission requirements were derived from radio occultation physics and operational stakeholders. The mission architecture proposed is a minimum constellation of three satellites in circular orbits, with an apogee of 7400 km, inclination of 51.64°, and varying ascending nodes at 10° intervals to form an occultation zone for GNSS signal interception. The scientific payload comprises a radio receiver, a GNSS signal processing computer, a UHF/VHF/X- band ground signal receiver-transmitter, an onboard mission clock, and a control computer. Estimated budgets include electrical power (152.4 W), mass (5.02 kg), operational temperature range (30°C to 50°C), and satellite dimensions (4U). The chosen propulsion system is the polytetrafluoroethylene (PTFE) plasma propulsion, providing a velocity increment of 613.25 m/s.
Keywords
inosphere, Satellites, GNSS-RO, SMAD, MBSE
