Maximum Kp index on December 18, 2011
Kp = 2
Maximum Kp index on December 18, 2011
The Earth's magnetosphere was quiet
Kp = 2
Geomagnetic storms in Seattle on December 18, 2011
Time zone — UTC−08 (Seattle | 47.62 N 122.35 W)
Geomagnetic storms in Seattle in December 2011
Time zone — UTC−08 (Seattle | 47.62 N 122.35 W)
Geomagnetic activity indices on December 18, 2011
| Geomagnetic index Ap | 2 |
|---|---|
| Solar radio flux F10.7 | 128 |