A Model for the Geostationary Electron Environment: POLE, From 30 keV to 5.2 MeV

In 2003, a model for the geostationary electron environment: POLE (Particle ONERA-LANL Environment) has been developed at ONERA/DESP. This model is based on the full complement of Los Alamos National Laboratory geostationary satellites, covers the period 1976–2001 and is valid from 30 keV up to 2.5 MeV and takes into account the solar cycle variation. Over the period 1976 to present, three different detectors were flown: CPA (Charged Particle Analyzer), SOPA (Synchronous Orbit Particle Analyzer) and ESP (Energetic Spectra for Particles). The first two were studied to develop the first version of POLE (up to 2.5 MeV). Here, in order to extend the energy coverage of the model, we analyze the data of the third detector: ESP, where the electron detection covers the range 0.7 MeV–25.8 MeV. The new version thus obtained cover energies from 30 keV up to 5.2 MeV.