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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2018 Dec 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 Dec 2018	071	010
12 Dec 2018	070	012
13 Dec 2018	069	007

Bulletin

Solar activity has been quiet over the past 24 hours. There are no significant Active Regions on the solar disk. Flaring conditions are expected to remain quiet with a very small change of C-class flares.

No Earth directed Coronal Mass Ejection have been observed. The greater than 10 MeV solar protons flux remained at background levels over the past 24 hours and are expected to remain so.

The solar wind speed has been slowly decreasing from around 650 to 525 km/s over the past 24 hours. The total magnetic field strength has fluctuated around 5 nT. The Bz component was largely positive, fluctuating between -5 and +5 nT.

The elevated solar wind speeds were a consequence of a large Coronal Hole (which reached the central meridian on December 04). The enhanced solar wind conditions are beginning to abate but could still cause enhanced geomagnetic activity.

Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 012, basierend auf 16 Stationen.

Solarindizes für den 10 Dec 2018

Wolf-Zahl Catania	000
10cm Solarflux	071
AK Chambon La Forêt	013
AK Wingst	///
Geschätzer Ap-Wert	011
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 26 Stationen

Zusammenfassung auffälliger Ereignisse

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

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