Last Updated: 09/13/2025

DISCO

Version: 0.75

DISCO is a GPU-based guiding center code that traces particle trajectories in MHD output. Currently, output from SWMF is supported, with support for MAGE planned in the future. DISCO implements the Brizard-Chan guiding center equations, including ExB drift, grad-B drift. and curvature drift, and is safe to use with relativistic particles.

Inputs

SWMF MHD Output as directory of .out files. MAGE Support planned in the future.

Particle Initial Conditions • Starting Position • Starting Parallel Velocity • Starting Magnetic Moment • Mass (only 1 per run) • Charge (only 1 per run)

Outputs

Particle Trajectories

Model is time-dependent.

Domains

  • Geospace
  • Magnetosphere / Global Magnetosphere
  • High Latitude Ionosphere / Auroral Region

Space Weather Impacts

  • Ionosphere variability (navigation, communications)
  • Atmosphere variability (satellite/debris drag)

Code

Code Languages: Python

Contacts

Publication Policy

In addition to any model-specific policy, please refer to the General Publication Policy.