  The NINA apparatus, on board the Russian satellite Resurs-01 n.4, has been in
polar orbit since 1998 July 10, at an altitude of 840 km. Its main scientific
task is to study the galactic, solar and anomalous components of cosmic rays in
the energy interval 10--200 MeV/n. In this paper we present a description of
the instrument and its basic operating modes. Measurements of Galactic Cosmic
Ray spectra will also be shown.
