Maximum Kp index on December 20, 2007
Kp = 4
Maximum Kp index on December 20, 2007
Geomagnetic disturbances were observed
Kp = 4
Geomagnetic storms in Boston on December 20, 2007
Time zone — UTC−05 (Boston | 42.24 N 71.03 W)
Geomagnetic storms in Boston in December 2007
Time zone — UTC−05 (Boston | 42.24 N 71.03 W)
Geomagnetic activity indices on December 20, 2007
| Geomagnetic index Ap | 12 |
|---|---|
| Solar radio flux F10.7 | 73 |