Maximum Kp index on December 20, 2025
Kp = 4-
Maximum Kp index on December 20, 2025
The Earth's magnetosphere was quiet
Kp = 4-
Geomagnetic storms in Indianapolis on December 20, 2025
Time zone — UTC−05 (Indianapolis | 39.79 N 86.15 W)
Geomagnetic storms in Indianapolis in December 2025
Time zone — UTC−05 (Indianapolis | 39.79 N 86.15 W)
Geomagnetic activity indices on December 20, 2025
| Geomagnetic index Ap | 6 |
|---|---|
| Solar radio flux F10.7 | 120 |