2025-09-18
Historical snapshot — data recorded on 2026-08-12, not live
Space weather — 2025-09-18
Daily Statistics Brief
On 2025-09-18, the planetary Kp index peaked at 3.8 (G0 quiet). solar wind speed reached 426 km/s and Bz dipped to -6 nT. Auroral hemispheric power was 38 GW. The Dst index reached -57 nT.
Aurora Oval — Peak Kp 3.8
Unsettled — aurora confined to high latitudes.
Auroral power: 38 GW
Kp max3.8Kp now3.8Wind426 km/sBz-6 nTAurora38 GWDst-57 nTFlare—NEAs0