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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2016 Sep 11 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

C-class flares expected, (probability >=50%)

Geomagnetismus

Active conditions expected (A>=20 or K=4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
11 Sep 2016	091	005
12 Sep 2016	087	011
13 Sep 2016	082	006

Bulletin

Only B-class flaring was observed, the strongest a B9.2 flare peaking at 19:22UT and produced by NOAA 2591. NOAA 2585, 2588 and 2589 are gradually decaying. No earth-directed coronal mass ejections (CME) have been observed.

A C-class flare is possible, with a small chance on an isolated M-class event.

Solar wind parameters were at nominal values, with wind speed declining slightly from about 390 km/s to 360 km/s. Bz fluctuated between -3 and +3 nT. The interplanetary magnetic field (IMF) was mostly directed away from the Sun (positive). Geomagnetic activity was at quiet levels, with Dourbes reporting an unsettled episode during the 21-24UT interval.

Quiet to unsettled geomagnetic conditions are expected, with a chance on active intervals should the moderate speed stream from a polar coronal hole extension arrive at the earth environment later today.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 067, basierend auf 14 Stationen.

Solarindizes für den 10 Sep 2016

Wolf-Zahl Catania	///
10cm Solarflux	093
AK Chambon La Forêt	008
AK Wingst	004
Geschätzer Ap-Wert	004
Geschätzte internationale Sonnenfleckenzahl	081 - Basierend auf 28 Stationen

Zusammenfassung auffälliger Ereignisse

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

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