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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2019 Apr 06 1230 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
06 Apr 2019	075	016
07 Apr 2019	076	013
08 Apr 2019	076	007

Bulletin

The Sun did not produce any flares in the past 24 hours. While NOAA AR 2737 decayed into a plage, the coronal loops from old NOAA region AR 2736 have appeared at the East limb. The chance for a C flare in the next 24 hours is estimated at 15%, especially from the returning region at the East limb.

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

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

Solar wind speed near Earth as registered by DSCOVR varied between about 465 and 535 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was directed predominantly towards the Sun and its magnitude varied between about 1 and 7 nT. Bz was never below -5 nT.

Quiet to unsettled geomagnetic conditions (K Dourbes between 2 and 3; NOAA Kp between 2 and 3) were registered in the past 24 hours. Active intervals (K Dourbes = 4) are possible on April 6 and the first half of April 7, with a slight chance for minor storm levels (K Dourbes = 5) due to the influence from isolated negative polarity coronal holes. Quiet to unsettled levels (K Dourbes < 4) are expected in the second half of April 7 and on April 8.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 10 Stationen.

Solarindizes für den 05 Apr 2019

Wolf-Zahl Catania	///
10cm Solarflux	072
AK Chambon La Forêt	019
AK Wingst	016
Geschätzer Ap-Wert	016
Geschätzte internationale Sonnenfleckenzahl	007 - Basierend auf 25 Stationen

Zusammenfassung auffälliger Ereignisse

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

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