Long-term energetic-particle databases from geosynchronous and GPS orbits

The Los Alamos National Laboratory has flown thirteen energetic-particle instruments on geosynchronous satellites since 1976 and on seven GPS satellites since 1983. These instruments measure electrons and protons over a wide range of energies. The various instruments and the particles and energies that they measure are described. The measured fluxes are stored at Los Alamos in several databases that are available to outside users.