Date: 16 September 2021; 10:20 UT

Summary of Space Weather.
The sun is spotless. The geomagnetic conditions are quiet. The
solar wind speed is declining.

Space Weather parameters / observations;

Sunspot Number: 0
10.7cm Flux: 75 sfu

Solar wind speed: 333.9 km.s-1
Solar wind density: 7.0 protons.cm3

Kp: 1
Bz: 0.4 nT (North)
Bt: 5.4 nT
Dst: 3 nT

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Date: 15 September 2021; 09:45 UT

Summary of Space Weather.
Decaying Sunspots AR2866 is about to dissappear. The geomagnetic conditions are quiet. The
solar wind speed is declining.

Space Weather parameters / observations;

Sunspot Number: 13
10.7cm Flux: 78 sfu

Solar wind speed: 415.8 km.s-1
Solar wind density: 3.9 protons.cm3

Kp: 2
Bz: -2.8 nT (South)
Bt: 4.5 nT
Dst: -26 nT

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Date: 14 September 2021; 23:45 UT

Summary of Space Weather.
Sunspots AR2866 and AR2868 are both ready to dissappear. The geomagnetic conditions are quiet. The
solar wind speed has declined.

Space Weather parameters / observations;

Sunspot Number: 32
10.7cm Flux: 83 sfu

Solar wind speed: 447.8 km.s-1
Solar wind density: 5.3 protons.cm3

Kp: 2
Bz: 0.7 nT (North)
Bt: 4.3 nT
Dst: -26 nT

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Date: 13 September 2021; 10:45 UT

Summary of Space Weather.
Sunspot AR2866 is rapidly decaying. The geomagnetic conditions are quiet. The
solar wind speed is increasing.

Space Weather parameters / observations;

Sunspot Number: 47
10.7cm Flux: 88 sfu

Solar wind speed: 488.0 km.s-1
Solar wind density: 6.4 protons.cm3

Kp: 3
Bz: 8.5 nT (North)
Bt: 9.0 nT
Dst: -8 nT

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Date: 12 September 2021; 19:45 UT

Summary of Space Weather.
Big Sunspot AR2866 is starting to decay. The geomagnetic conditions are quiet. The
solar wind speed has increased.

Space Weather parameters / observations;

Sunspot Number: 93
10.7cm Flux: 92 sfu

Solar wind speed: 343.3 km.s-1
Solar wind density: 6.1 protons.cm3

Kp: 2
Bz: -5.2 nT (South)
Bt: 6.9 nT
Dst: 2 nT

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Date: 11 September 2021; 09:45 UT

Summary of Space Weather.
Sunspots AR2866 and AR2868 are slowly cracking with C-class solar flares. The geomagnetic conditions are quiet. The
solar wind speed has declining.

Space Weather parameters / observations;

Sunspot Number: 96
10.7cm Flux: 100 sfu

Solar wind speed: 319.6 km.s-1
Solar wind density: 7.4 protons.cm3

Kp: 2
Bz: -2.8 nT (South)
Bt: 12.0 nT
Dst: -11 nT

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Date: 10 September 2021; 09:45 UT

Summary of Space Weather.
Sunspots AR2866 and AR2868 are slowly cracking with C-class solar flares. The geomagnetic conditions are quiet. The
solar wind speed has declined.

Space Weather parameters / observations;

Sunspot Number: 124
10.7cm Flux: 100 sfu

Solar wind speed: 343.7 km.s-1
Solar wind density: 9.7 protons.cm3

Kp: 2
Bz: 2.0 nT (North)
Bt: 4.5 nT
Dst: -11 nT

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Date: 09 September 2021; 09:45 UT

Summary of Space Weather.
Sunspots AR2864, AR2866 and AR2868 are all cracking with C2-class solar flares. The geomagnetic conditions are quiet. The
solar wind speed is elevated.

Space Weather parameters / observations;
Sunspot Number: 87
10.7cm Flux: 100 sfu

Solar wind speed: 413.5 km.s-1
Solar wind density: 3.3 protons.cm3

Kp: 2
Bz: -2.0 nT (South)
Bt: 2.7 nT
Dst: -7 nT

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Date: 08 September 2021; 10:45 UT

Summary of Space Weather.
Sunspots AR2864 produced a C2-class solar flare and possibly a CME on sept 8. The geomagnetic conditions are quiet. The
solar wind speed is elevated.

Space Weather parameters / observations;

Sunspot Number: 85
10.7cm Flux: 101 sfu

Solar wind speed: 417.3.3 km.s-1
Solar wind density: 9.2 protons.cm3

Kp: 3
Bz: -5.3 nT (South)
Bt: 6.6 nT
Dst: 2 nT

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