Solar wind — February 19, 2025

February 19, 2025

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Solar wind parameters

Solar wind speed

485 km/s normal (average for 24 hours)

Solar wind speed for February 18 and 19, 2025, according to data from the ACE spacecraft Solar wind speed for February 18 and 19, 2025.

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Solar wind density

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

Solar wind density for February 18 and 19, 2025, according to data from the ACE spacecraft Solar wind density for February 18 and 19, 2025.

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Solar wind temperature

133 000 K increased (average for 24 hours)

Solar wind temperature for February 18 and 19, 2025, according to data from the ACE spacecraft Solar wind temperature for February 18 and 19, 2025.

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Solar wind magnetic field induction

7.3 nT normal (average for 24 hours)

Solar wind magnetic field induction for February 18 and 19, 2025, according to data from the ACE spacecraft Solar wind magnetic field induction for February 18 and 19, 2025.

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The Bz component of the solar wind magnetic field

−3.5 nT negative (average for 24 hours)

The Bz component of the solar wind magnetic field for February 18 and 19, 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 February 18 and 19, 2025.

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