Maximum Kp index on September 28, 2009
Kp = 4
Maximum Kp index on September 28, 2009
Geomagnetic disturbances were observed
Kp = 4
Geomagnetic storms in Boston on September 28, 2009
Time zone — UTC−04 — summer time (Boston | 42.24 N 71.03 W)
Geomagnetic storms in Boston in September 2009
Time zone — UTC−04 — summer time (Boston | 42.24 N 71.03 W)
Geomagnetic activity indices on September 28, 2009
| Geomagnetic index Ap | 8 |
|---|---|
| Solar radio flux F10.7 | 73 |