AMS-02 - University of Hawaii at Manoa

Neutron Monitor

Neutron Monitor
  • Overview & Purpose
    Neutron monitors detect high-energy particles from the Sun, including solar energetic particles and solar neutron particles. These particles pose risks to astronauts, can cause failures in space electronics, and disrupt satellites and space-based technologies.

  • Neutron Monitor Stations
    Haleakalā Neutron Monitor Station (HLEA) - in collaboration with the University of New Hampshire
    Located at 10,000 feet on Haleakalā, Maui. Captures more solar neutron particles due to longer daily sun exposure and minimal seasonal variations.
    Thailand-Hawaiʻi Monitor (THIMON) - in collaboration with Chang Mai University
    Installed alongside HLEA to enhance the global neutron monitor network's coverage.
    Global Importance: The monitors fill a critical 162-degree gap in the global neutron monitor network between Mexico and Thailand. This will help to improve worldwide space weather forecast.

  • Space Weather Control Center
    Established at UH Mānoa to analyze data from neutron monitors. Supports real-time monitoring and forecasting efforts.

  • Funding & Collaboration
    Funded by a $2.5 million NSF grant over four years. Collaborations with University of New Hampshire and University of Arizona.

Space Weather

Space Weather
  • What is Space Weather?
    Space weather refers to solar activity and its effects on Earth and space-based technology. Events like solar flares, coronal mass ejections, and energetic particle emissions can disrupt satellites, power grids, and communication systems.

  • Solar Cycle 25 & Forecasting
    The project aligns with Solar Cycle 25, expected to reach maximum activity in summer 2025. Data collected will help predict and mitigate space weather events.

  • Impact on Technology & Human Space Exploration
    Space weather can:
    Disrupt GPS, satellite communications, and power grids.
    Pose radiation risks to astronauts and high-altitude flights.
    Affect spacecraft functionality and space missions.

  • International Collaboration & Research
    The project is part of a global effort to enhance space weather forecasting. International workshops bring together scientists worldwide to discuss new findings and advancements.