IMPTAM Updates

May 2025

The IMPTAM version 1.1 is now available to the community through the CCMC Runs-On-Request (ROR) Service, and the CCMC is running the model continuously via the CCMC Continuous Run system publishing the results on the CCMC ISWA system (see the model layout on ISWA).

The Inner Magnetosphere Particle Transport and Acceleration Model (IMPTAM) provided ion (H+, O+, He+) and electron fluxes in the energy range from 1 to 300 keV and pitch angle distributions everywhere in 3D inner magnetosphere at distances from 2 to 10 RE, with specific output at GEO, GTO and MEO orbits. IMPTAM is a flexible, module-based model with time dependent main parts: particle transport, boundary conditions, background magnetic and electric fields, and loss processes. The model can be used for both science and space weather application (e.g., surface charging) purposes, with the model outputs available in near real-time via CCMC’s ISWA system. Custom runs can be requested via the CCMC Run-on-Request service as well. IMPTAM is driven by (1) solar wind number density, (2) dynamic pressure, (3) velocity, (4) total strength and Y- and Z-components of IMF and (5) Dst and (6) Kp indices.