Geomagnetic storms in Cheyenne — October 21, 2025
Geomagnetic storms in Cheyenne on Oct 21, 2025
the Earth's magnetosphere was quiet (Kp = 2.33)
Geomagnetic storms in the last 3 days
Changes in the geomagnetic index Kp from October 19 to 21, 2025 for mid latitudes
Location — Cheyenne (geographic coordinates — 41.15 N -104.8 W | time zone UTC-06 - summer time)
This chart in PNG format — high resolution
API data: JSON or TXT
Geomagnetic storms in Cheyenne in October 2025
Changes in the maximum daily geomagnetic index Kp in October 2025 for mid latitudes
Location — Cheyenne (geographic coordinates — 41.15 N -104.8 W | time zone UTC-06 - summer time)
This chart in PNG format — high resolution
API data: JSON or TXT
Other activity indices
Index AP = 9
Index F10.7 = 133