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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2020 Apr 25 1231 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
25 Apr 2020	070	006
26 Apr 2020	070	007
27 Apr 2020	070	007

Bulletin

Solar X-ray flux remained below B level. The small plage region located around S07E45 developed some spots this morning but Solar flaring is overall 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 has been slightly enhanced over the past 24 hours. The electron flux should be at background values over the next days as Solar wind has returned to a nominal slow Solar wind regime.

Solar wind conditions were near nominal. Solar wind speed overall increased slightly from around 370km/s to around 430 km/s. The total magnetic field was somewhat variable with a maximum of 8nT and a minimum of 1nT. Bz was variable and the magnetic field phi angle was mostly in the negative sector with some excursions into the positive sector. Near nominal Solar wind conditions are expected over the next days.

Geomagnetic conditions were quiet to unsettled (local KDourbes and NOAA Kp 1-3). Quiet geomagnetic conditions are expected over the next days with an occasional unsettled episode possible.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 007, basierend auf 17 Stationen.

Solarindizes für den 24 Apr 2020

Wolf-Zahl Catania	///
10cm Solarflux	071
AK Chambon La Forêt	///
AK Wingst	012
Geschätzer Ap-Wert	009
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 33 Stationen

Zusammenfassung auffälliger Ereignisse

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

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