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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2020 Aug 21 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

Quiet conditions (<50% probability of C-class flares)

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
21 Aug 2020	070	005
22 Aug 2020	070	003
23 Aug 2020	071	004

Bulletin

Solar flaring activity was at very low levels. No significant flares have been recorded. Solar activity is expected to remain at very low levels.

No Earth directed Coronal Mass Ejections (CMEs) were observed in the available coronagraphic imagery.

The greater than 10 MeV proton flux was at background levels over the past 24 hours. It is expected to stay at background levels for the next 24 hours. The greater than 2 MeV electron flux was at nominal levels over the past 24 hours and is expected to remain so over the next 24 hours.

The speed of the solar wind slowed down, varying between 295 and 330 km/s (DSCOVR). No effects of the CME on Aug 16 seem present. The polarity of the Interplanetary Magnetic Field (IMF) varied, reflecting a patchy Sun. Bz fluctuated between -2 and +2 nT. The magnitude of the magnetic field varied between 0 and 4 nT. Over the next 24 hours, the solar wind parameters will reflect quiet conditions.

The geomagnetic conditions were quiet. The values registered for the past 24 hours were 0-3 for K Dourbes and 0-1 for NOAA Kp. Quiet conditions are expected for the next 24 hours.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 005, basierend auf 21 Stationen.

Solarindizes für den 20 Aug 2020

Wolf-Zahl Catania	///
10cm Solarflux	070
AK Chambon La Forêt	006
AK Wingst	004
Geschätzer Ap-Wert	003
Geschätzte internationale Sonnenfleckenzahl	012 - Basierend auf 30 Stationen

Zusammenfassung auffälliger Ereignisse

Zur Verfügung gestellt vom Solar Influences Data Analysis Center© - SIDC - Verarbeitet von SpaceWeatherLive

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