Solar wind — December 19, 2025
Solar wind speed
557 km/s
increased (average for 24 hours)
Dynamics for the Dec 18, 2025 and Dec 19, 2025 using ACE spacecraft data

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Solar wind density
1.3 cm-3
normal (average for 24 hours)
Dynamics for the Dec 18, 2025 and Dec 19, 2025 using ACE spacecraft data

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Solar wind temperature
168 000 K
increased (average for 24 hours)
Dynamics for the Dec 18, 2025 and Dec 19, 2025 using ACE spacecraft data

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Interplanetary magnetic field induction
3.8 nT
normal (average for 24 hours)
Dynamics for the Dec 18, 2025 and Dec 19, 2025 using ACE spacecraft data

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Component Bz of the interplanetary magnetic field
+0.4 nT
positive (average for 24 hours)
Dynamics for the Dec 18, 2025 and Dec 19, 2025 using ACE spacecraft data

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