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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2020 Apr 23 1231 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Active conditions expected (A>=20 or K=4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
23 Apr 2020	070	011
24 Apr 2020	071	013
25 Apr 2020	071	007

Bulletin

Solar X-ray flux remained below B level. There are no spotted regions on disk and Solar flaring is expected to remain below C level over the next days.

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

The greater than 10 MeV proton flux was at nominal levels over the past 24 hours and is expected to stay at nominal levels. The greater than 2 MeV electron flux enhanced slightly over the past 24 hours. A further slight increase of the electron flux over the next days may be expected associated to ongoing slightly elevated Solar wind conditions.

Solar wind remained slightly enhanced with an overall decaying Solar wind speed, currently at around 400 km/s. The total magnetic field was at or below a nominal 5nT. Bz was variable and the magnetic field phi angle mostly in the negative sector. Solar wind is expected to remain enhanced over the next 24-48 hours before returning to nominal conditions.

Geomagnetic conditions were quiet (NOAA Kp 1-2, local K Dourbes 0-2). Geomagnetic conditions are expected to be quiet to unsettled with an occasional active episode possible.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 29 Stationen.

Solarindizes für den 22 Apr 2020

Wolf-Zahl Catania	///
10cm Solarflux	071
AK Chambon La Forêt	009
AK Wingst	012
Geschätzer Ap-Wert	010
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 34 Stationen

Zusammenfassung auffälliger Ereignisse

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

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