Maximum Kp index on December 31, 2004
Kp = 4
Maximum Kp index on December 31, 2004
Geomagnetic disturbances were observed
Kp = 4
Geomagnetic storms in Austin on December 31, 2004
Time zone — UTC−06 (Austin | 30.27 N 97.75 W)
Geomagnetic storms in Austin in December 2004
Time zone — UTC−06 (Austin | 30.27 N 97.75 W)
Geomagnetic activity indices on December 31, 2004
| Geomagnetic index Ap | 8 |
|---|---|
| Solar radio flux F10.7 | 99 |