Maximum Kp index on September 18, 2026
Kp = 3-
Maximum Kp index on September 18, 2026
The Earth's magnetosphere was quiet
Kp = 3-
Geomagnetic storms in Harrisburg on September 18, 2026
Time zone — UTC−05 — summer time (Harrisburg | 40.27 N 76.88 W)
Geomagnetic storms in Harrisburg in September 2026
Time zone — UTC−05 — summer time (Harrisburg | 40.27 N 76.88 W)
Geomagnetic activity indices on September 18, 2026
| Geomagnetic index Ap | 5 |
|---|---|
| Solar radio flux F10.7 | 96 |