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Geomagnetic storms in Yaroslavl — September 21, 2025

September 21, 2025
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Maximum Kp index on September 21, 2025

Kp = 2

Maximum Kp index on September 21, 2025

The Earth's magnetosphere was quiet

Kp = 2

Geomagnetic storms in Yaroslavl on September 21, 2025

Changes in the geomagnetic index Kp from September 19 to 21, 2025 for mid latitudes

Time zone — UTC+03 (Yaroslavl | geographic coordinates — 57.62 N 39.85 E)

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Geomagnetic index Kp for 3 days
PNG API: JSON | TXT

Geomagnetic storms in Yaroslavl in September 2025

Changes in the maximum daily geomagnetic index Kp in September 2025 for mid latitudes

Time zone — UTC+03 (Yaroslavl | geographic coordinates — 57.62 N 39.85 E)

August 2025 October 2025
Daily Kp index in September 2025
PNG API: JSON | TXT

Geomagnetic activity indices on September 21, 2025

Geomagnetic index Ap 6
Solar radio flux F10.7 176