Maximum Kp index on July 21, 2025
Kp = 2
Maximum Kp index on July 21, 2025
The Earth's magnetosphere was quiet
Kp = 2
Geomagnetic storms in Indianapolis on July 21, 2025
Time zone — UTC−04 — summer time (Indianapolis | 39.79 N 86.15 W)
Geomagnetic storms in Indianapolis in July 2025
Time zone — UTC−04 — summer time (Indianapolis | 39.79 N 86.15 W)
Geomagnetic activity indices on July 21, 2025
| Geomagnetic index Ap | 4 |
|---|---|
| Solar radio flux F10.7 | 143 |
Diary
- 25.08.2026 Powerful solar flares posing a threat to Earth have resumed.
- 24.08.2026 Space weather on August 24, 2026
- 22.08.2026 The number of solar flares has begun to decline