Searchable data on this website include: GOES and ACE Satellite data, Kp and local K index and various local ground based observation data.

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• X-ray flux

  Graphs of 5-minute solar x-ray flux values measured on the GOES satellite.

  Proton flux

  Graphs of 5-minute proton flux values measured on the GOES satellite.

  Electron flux

  Graphs of 5-minute electron flux values measured on the GOES satellite.

• K_p-index

  Icheon K_i-index

  Gangneung K_g-index

  Jeju K_j-index

  Korea K_k-index

  The K-index ranges from 1 to 9. The K-index is calculated during a 3-hour interval based on the average values observed from various regions of the Earth. K-indices from Icheon, Gangneung and Jeju stations in South Korea are also available.

  Magnetomter

  The variations in the geomagnetic field measured by GOES satellites (the horizontal components of the Earth’s rotation axis, Hp) are averaged every minute. The nanoTelsa is used as the unit of measurement.

  Solar radio 30~2500MHz

  Solar radio emissions provide one day values of the absolute solar flux in the wavelength bands of 30MHz-2.5GHz, as measured by the Icheon station of RRA.

• Solar radio 2.8Hz

  Yesterday and today’s values of absolute solar flux in the wavelength bands, as measured in five different solar radio observatories around the world, are shown.

  Solar Image

  A total of 11 different types of solar images in various wavelength bands are displayed. Some of the solar images are observed by extreme ultraviolet and include the solar corona, solar white light and solar magnetic field distribution.

  Ichoen ionosonde

  Jeju ionosonde

  It shows images of the ionosphere data as measured by Icheon and Jeju stations. By imaging data every 15 minutes, it provides daily images with lists and observed values of foF2 plots, which display the intermittent variation of the ionospheric vertical maximum usable frequency.

• Ichoen magnetometer

  Gangneung magnetometer

  Jeju magnetometer

  K-indices are calculated based on D and H components by using the magnetometers in Icheon, Gangneung and Jeju stations.

  Icheon TECs

  Jeju TECs

  The values of the TEC (Total Electron Content) in the ionosphere observed in Icheon and Jeju stations are displayed. The values might temporarily fluctuate due to solar activity or geomagnetic storms.

  ACE Magnetic Field

  ACE Plasma

  ACE Low Energy
  Electrons & Protons

  ACE High Energy Protons

  The averaged graphs of real-time variation in the solar wind’s magnetic field and solar particles, as observed by the ACE satellite, are shown.