RADCUBE mission demonstrates miniaturized, on-board instrument technologies of the 3U CubeSat platform. The primary scientific objective is the in-situ measurement of space radiation and magnetic field environment in LEO for real-time monitoring of space weather including the radiation that spacecrafts, spacecraft components and astronauts are exposed to. The project is an international consortium including the Hungarian Centre for Energy Research, ICL and Astronica, led by C3S LLC. Primary payload RadMag is developed by Hungarian Centre for Energy Research