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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2019 Feb 11 1230 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
11 Feb 2019	070	005
12 Feb 2019	069	004
13 Feb 2019	069	005

Bulletin

The solar activity has been quiet over the past 24 hours. The visible solar disc was spotless and the X-ray flux remained below B-class level. Quiet conditions are expected to continue over the next 24 hours.

No Earth directed Coronal Mass Ejections (CMEs) have been detected. The greater than 10MeV proton flux remained at background levels over the past 24 hours and is expected to remain so.

The solar wind speed has decreased from around 460 to 360 km/s over the past 24 hours. The total magnetic field strength remained below 7 nT and the Bz component fluctuated between -3.4 and +3.4 nT. The solar wind parameters are expected to remain at background levels for the next 24 hours. A southern polar coronal hole, extending to approximately -40 degrees latitude, is currently facing Earth and may cause slightly enhanced solar wind conditions in a few days.

The geomagnetic conditions have been quiet over the past 24 hours, with the Kp (NOAA) and the local K (Dourbes) indices ranging between 1 and 2. Over the next 24 hours, geomagnetic conditions are expected to remain quiet.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 19 Stationen.

Solarindizes für den 10 Feb 2019

Wolf-Zahl Catania	///
10cm Solarflux	070
AK Chambon La Forêt	008
AK Wingst	008
Geschätzer Ap-Wert	006
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 14 Stationen

Zusammenfassung auffälliger Ereignisse

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

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