Solar wind on September 29, 2025

September 29, 2025

UTC+00 change region

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Solar wind parameters

Solar wind speed

391 km/s normal (average for 24 hours)

Solar wind speed for September 28 and 29, 2025, according to data from the ACE spacecraft Solar wind speed for September 28 and 29, 2025.

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Solar wind density

2.8 cm^-3 normal (average for 24 hours)

Solar wind density for September 28 and 29, 2025, according to data from the ACE spacecraft Solar wind density for September 28 and 29, 2025.

PNG API: JSON | TXT

Solar wind temperature

41 000 K normal (average for 24 hours)

Solar wind temperature for September 28 and 29, 2025, according to data from the ACE spacecraft Solar wind temperature for September 28 and 29, 2025.

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Solar wind magnetic field induction

13 nT increased (average for 24 hours)

Solar wind magnetic field induction for September 28 and 29, 2025, according to data from the ACE spacecraft Solar wind magnetic field induction for September 28 and 29, 2025.

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The Bz component of the solar wind magnetic field

−6.5 nT negative (average for 24 hours)

The Bz component of the solar wind magnetic field for September 28 and 29, 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 28 and 29, 2025.

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