Solar wind — September 4, 2025

September 4, 2025

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Solar wind parameters

Solar wind speed

462 km/s normal (average for 24 hours)

Solar wind speed for September 3 and 4, 2025, according to data from the ACE spacecraft Solar wind speed for September 3 and 4, 2025.

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Solar wind density

0.94 cm^-3 low (average for 24 hours)

Solar wind density for September 3 and 4, 2025, according to data from the ACE spacecraft Solar wind density for September 3 and 4, 2025.

PNG API: JSON | TXT

Solar wind temperature

112 000 K normal (average for 24 hours)

Solar wind temperature for September 3 and 4, 2025, according to data from the ACE spacecraft Solar wind temperature for September 3 and 4, 2025.

PNG API: JSON | TXT

Solar wind magnetic field induction

7.1 nT normal (average for 24 hours)

Solar wind magnetic field induction for September 3 and 4, 2025, according to data from the ACE spacecraft Solar wind magnetic field induction for September 3 and 4, 2025.

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The Bz component of the solar wind magnetic field

−1.3 nT negative (average for 24 hours)

The Bz component of the solar wind magnetic field for September 3 and 4, 2025, according to data from the ACE spacecraft. A negative, blue Bz value (southern direction of the field) promotes the development of magnetic storms and northern lights. The Bz component of the solar wind magnetic field for September 3 and 4, 2025.

PNG API: JSON | TXT