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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2016 Sep 12 1251 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
12 Sep 2016	086	012
13 Sep 2016	083	007
14 Sep 2016	081	004

Bulletin

Solar activity was very low in the past 24 hours. No flares, no Earth-directed CMEs were observed. Four active regions are presently observed on the visible side of the solar disc. Solar proton flux intensity is expected to lie within the background levels. Solar activity is expected to be low with some probability for C-class flares.

Solar wind parameters were at nominal values, with wind speed declining slightly from about 375 km/s to 330 km/s. The magnitude of the Interplanetary Magnetic Field (Bt) increased from +5 nT to 13 nT, while Bz increased from -4 nT till +12 nT during this morning (12-Sep-2016) due to the weak influence of a positive polarity coronal hole. The interplanetary magnetic field (IMF) was mostly directed away from the Sun (positive). In the past 24 hours, geomagnetic conditions have been quiet (K Dourbes between 1 and 3; NOAA Kp between 1 and 3). Active to minor geomagnetic storm conditions (K Dourbes = 3-4) are possible from today (12-Sep-2016) due to the increased variations of the solar wind parameters.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 057, basierend auf 24 Stationen.

Solarindizes für den 11 Sep 2016

Wolf-Zahl Catania	///
10cm Solarflux	086
AK Chambon La Forêt	///
AK Wingst	004
Geschätzer Ap-Wert	004
Geschätzte internationale Sonnenfleckenzahl	067 - Basierend auf 26 Stationen

Zusammenfassung auffälliger Ereignisse

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

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