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 Chicago on December 18, 2011
Time zone — UTC−06 (Chicago | 41.84 N 87.68 W)
Geomagnetic storms in Chicago in December 2011
Time zone — UTC−06 (Chicago | 41.84 N 87.68 W)
Geomagnetic activity indices on December 18, 2011
| Geomagnetic index Ap | 2 |
|---|---|
| Solar radio flux F10.7 | 128 |