The solar-powered CubeSat-based satellite will weigh approximately 3 kilograms , and has 3 main payloads: a miniature Fabry-Pérot spectrometer, designed by VTT Technical Research Centre, a RADMON-radiation detector developed by University of Helsinki and University of Turku for the study of solar wind conditions in the Earth orbit (and to study the radiation environment in general), and an electric sail (dubbed a "brake tether"), which is designed to deorbit it at the end of its 2-year Aalto-1: The Finnish Student Nanosatellite.