Maximum Kp index on December 18, 2007
Kp = 4
Maximum Kp index on December 18, 2007
Geomagnetic disturbances were observed
Kp = 4
Geomagnetic storms in Austin on December 18, 2007
Time zone — UTC−06 (Austin | 30.27 N 97.75 W)
Geomagnetic storms in Austin in December 2007
Time zone — UTC−06 (Austin | 30.27 N 97.75 W)
Geomagnetic activity indices on December 18, 2007
| Geomagnetic index Ap | 18 |
|---|---|
| Solar radio flux F10.7 | 77 |