2025-09-11
Historical snapshot — data recorded on 2026-08-12, not live
Space weather — 2025-09-11
Daily Statistics Brief
On 2025-09-11, the planetary Kp index peaked at 4.6 (G1 minor). solar wind speed reached 442 km/s and Bz dipped to -7 nT. Auroral hemispheric power was 46 GW. The Dst index reached -69 nT.
Aurora Oval — Peak Kp 4.6
Unsettled — aurora confined to high latitudes.
Auroral power: 46 GW
Kp max4.6Kp now4.6Wind442 km/sBz-7 nTAurora46 GWDst-69 nTFlare—NEAs0