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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2020 Apr 26 1235 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
26 Apr 2020	071	010
27 Apr 2020	071	011
28 Apr 2020	071	008

Bulletin

Solar X-ray flux remained below B level. The developing region mentioned already yesterday, now became numbered as NOAA 2760 and developed into a small bipolar region. 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 remained just slightly enhanced over the past 24 hours.

Solar wind was in a close to nominal regime with Solar wind speed around 400 km/s and total magnetic field around 5nT. Bz was unremarkable and the magnetic field phi angle was stable in the negative sector. Nominal Solar wind conditions are expected over the next days.

Geomagnetic conditions were essentially quiet with some isolated unsettled episodes locally (local K Dourbes 0-3 while NOAA Kp 0-2). Quiet geomagnetic conditions are expected over the next days with isolated unsettled episodes possible.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 014, basierend auf 23 Stationen.

Solarindizes für den 25 Apr 2020

Wolf-Zahl Catania	///
10cm Solarflux	///
AK Chambon La Forêt	///
AK Wingst	///
Geschätzer Ap-Wert	///
Geschätzte internationale Sonnenfleckenzahl	007 - Basierend auf 32 Stationen

Zusammenfassung auffälliger Ereignisse

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

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