Maximum Kp index on August 21, 2004
Kp = 4
Maximum Kp index on August 21, 2004
Geomagnetic disturbances were observed
Kp = 4
Geomagnetic storms in Phoenix on August 21, 2004
Time zone — UTC−07 (Phoenix | 33.45 N 112.07 W)
Geomagnetic storms in Phoenix in August 2004
Time zone — UTC−07 (Phoenix | 33.45 N 112.07 W)
Geomagnetic activity indices on August 21, 2004
| Geomagnetic index Ap | 17 |
|---|---|
| Solar radio flux F10.7 | 120 |