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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2020 Apr 13 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
13 Apr 2020	070	005
14 Apr 2020	070	007
15 Apr 2020	070	007

Bulletin

The Sun was spotless. Solar activity was at very low levels and is expected to remain so.

The greater than 10 MeV proton flux and the greater than 2 MeV electron flux were at nominal values and are expected to remain so.

No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery.

Solar wind speed declined slightly from its initial values around 450 km/s to vary between 390 and 430 km/s during most of the period (DSCOVR). Bz varied between -4 and + 4 nT. The direction of the interplanetary magnetic field (phi angle) started out variable, but turned to mostly sunward directions (negative sector) after 21UT.

Geomagnetic activity was at quiet to unsettled levels and is expected to remain so during the next few days, as the earth environment may encounter the slightly enhanced wind streams from some small and patchy coronal holes.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 22 Stationen.

Solarindizes für den 12 Apr 2020

Wolf-Zahl Catania	///
10cm Solarflux	071
AK Chambon La Forêt	012
AK Wingst	008
Geschätzer Ap-Wert	007
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 32 Stationen

Zusammenfassung auffälliger Ereignisse

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

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