Solar wind on December 20, 2021

December 20, 2021

Vilnius change region

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Solar wind parameters

Solar wind speed

580 km/s increased (average for 24 hours)

Solar wind speed for December 19 and 20, 2021, according to data from the ACE spacecraft Solar wind speed for December 19 and 20, 2021.

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Solar wind density

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

Solar wind density for December 19 and 20, 2021, according to data from the ACE spacecraft Solar wind density for December 19 and 20, 2021.

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Solar wind temperature

217 000 K high (average for 24 hours)

Solar wind temperature for December 19 and 20, 2021, according to data from the ACE spacecraft Solar wind temperature for December 19 and 20, 2021.

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Solar wind magnetic field induction

6 nT normal (average for 24 hours)

Solar wind magnetic field induction for December 19 and 20, 2021, according to data from the ACE spacecraft Solar wind magnetic field induction for December 19 and 20, 2021.

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The Bz component of the solar wind magnetic field

+1.4 nT positive (average for 24 hours)

The Bz component of the solar wind magnetic field for December 19 and 20, 2021, 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 December 19 and 20, 2021.

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