• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1978-01-01T00:00:00.000+00:00

This data file was generated as part of the International Magnetospheric Study (IMS). The file consists of values of the geomagnetic components D, H, X, Y, Z, and R averaged from 10-second...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1965-01-01T00:00:00.000+00:00

The Auroral Electrojet (AE) index is designed to provide a global quantitative measure of auroral zone magnetic activity produced by enhanced ionospheric currents flowing below and within the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1976-01-01T00:00:00.000+00:00

The Auroral Electrojet index (AE) is designed to provide a global quantitative measure of auroral zone magnetic activity produced by enhanced ionospheric currents flowing below and within the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1957-01-01T00:00:00.000+00:00

The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives, on a monthly basis, Q indices from Sodankyla. These data are available from July 1957...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1978-01-01T00:00:00.000+00:00

These data are generated as part of the International Magnetospheric Study. The file consists of 10-second instantaneous measurements for the geomagnetic components D, H, X, Y, Z and R. The 10...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-01-13

The unattenuated frequency range for this file type is 20Hz to 16000Hz. The cadence value given here is computed from the inverse of the sampling rate (35.71 kHz). For a description of the PWI...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-01-13

PWI>Plasma Wave Instrument Reference: Gurnett, D.A., et al., The Polar Plasma Wave Instrument, Space Science Reviews, Vol. 71, pp. 597-622, 1995. donald-gurnett@uiowa.edu An FFT on 2048 values was...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-01-13

PWI>Plasma Wave Instrument Reference: Gurnett, D.A. et al, The Polar Plasma Wave Instrument, Space Science Reviews, Vol. 71, pp. 597-622, 1995. donald-gurnett@uiowa.edu An FFT on 1024 values was...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-01-13

PWI>Plasma Wave Instrument Reference: Gurnett, D.A., et al., The Polar Plasma Wave Instrument, Space Science Reviews, Vol. 71, pp. 597-622, 1995. donald-gurnett@uiowa.edu An FFT on 2048 values was...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-01-13

PWI>Plasma Wave Instrument Reference: Gurnett, D.A. et al, The Polar Plasma Wave Instrument, Space Science Reviews, Vol. 71, pp. 597-622, 1995. donald-gurnett@uiowa.edu An FFT on 1024 values was...

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