Maximum Kp index on October 21, 2025
Kp = 3+
Maximum Kp index on October 21, 2025
The Earth's magnetosphere was quiet
Kp = 3+
Geomagnetic storms in Copenhagen on October 21, 2025
Time zone — UTC+02 — summer time (Copenhagen | 55.68 N 12.56 E)
Geomagnetic storms in Copenhagen in October 2025
Time zone — UTC+02 — summer time (Copenhagen | 55.68 N 12.56 E)
Geomagnetic activity indices on October 21, 2025
| Geomagnetic index Ap | 9 |
|---|---|
| Solar radio flux F10.7 | 133 |