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Download the World Magnetic Model Coefficients

  • WMM2020 (2020-2025) coefficients, test values, and instructions for updating your software (zip file)
  • WMM2020 technical report (zip file will be available in February 2020)
  • Maps with the blackout zone in pdf format (45 maps of the magnetic elements and their secular variation)
  • Maps without the blackout zone in pdf format (45 maps of the magnetic elements and their secular variation)