Maximum Kp index on December 18, 2004
Kp = 4
Maximum Kp index on December 18, 2004
Geomagnetic disturbances were observed
Kp = 4
Geomagnetic storms in Hartford on December 18, 2004
Time zone — UTC−05 (Hartford | 41.77 N 72.68 W)
Geomagnetic storms in Hartford in December 2004
Time zone — UTC−05 (Hartford | 41.77 N 72.68 W)
Geomagnetic activity indices on December 18, 2004
| Geomagnetic index Ap | 12 |
|---|---|
| Solar radio flux F10.7 | 91 |