Solar wind activity

- 800
- 700
- 600
- 500
- 400
- 300
Radial speed (km/s)
Solar wind flow along the equatorial plane
Solar wind flow along the perpendicular plane
5 days
12 days
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  • Wind speed
  • Kp > 4
  • Kp = 4
  • Kp < 4
Solar wind speed (km/s) and predicted Kp index
10