Space Weather

Essentials

24h Observed

Maximum

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Latest

Observed

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Kp

Index

Solar Wind Speed: ...

Solar Wind Magnetic Field: Bz = ...

Cosmic Rays

Cosmic Rays

Cosmic rays are high-energy particles originating from outer space that continuously bombard Earth's atmosphere. These particles, primarily protons and atomic nuclei, travel at nearly the speed of light and are detected by neutron monitors located worldwide. The intensity of cosmic rays varies due to solar activity, geomagnetic storms, and atmospheric conditions.

The data presented here are sourced from the Neutron Monitor Database (NMDB), which provides real-time cosmic ray measurements from a global network of neutron monitors. These instruments detect secondary particles produced when cosmic rays interact with Earth's atmosphere, providing valuable insights into space weather conditions and solar-terrestrial interactions.

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