Scientific Objectives

Polar Orbit

NINA has been built in order to investigate the nuclear and isotopic composition of low energy cosmic particles. Its low-altitude polar orbit (about 1.1 Earth-radii, see picture) is particularly suitable for performing observations of particles of different origin while traversing regions of different geomagnetic cut-off. The Earth's magnetic field is utilized as a spectrometer. According to the coordinates along the orbit where the particles are detected, it is possible to make inferences about their origin which can be galactic, solar, anomalous, trapped or not.