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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2013 Mar 18 1159 UTC

Vorhersage des SIDC

Sonneneruptionen

Quiet conditions (<50% probability of C-class flares)

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Proton event expected (10 pfu at >10 MeV)

	10cm Fluss	Ap
18 Mar 2013	126	016
19 Mar 2013	123	006
20 Mar 2013	123	004

Bulletin

Solar activity is eruptive with 6 C-flares in the past 12 hours. Four C-flares originated from NOAA AR1698 and two C-flares came from an unnumbered region near AR1700. Solar activity is expected to remain eruptive for the next 24 hours, mainly caused by AR1698. C-flares are very likely, but there is also a slight chance for an M-flare. AR1698 is approaching the west limb, so if it erupts a proton event is possible. The solar wind is getting stable again; in the past 24 hours the speed has decreased from 750 km/s to about 500 km/s. The interplanetary magnetic field has returned to about 10nT, with a positive Bz-component. Geomagnetic conditions are expected to be quiet for the next 48 hours.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 069, basierend auf 08 Stationen.

Solarindizes für den 17 Mar 2013

Wolf-Zahl Catania	///
10cm Solarflux	126
AK Chambon La Forêt	079
AK Wingst	056
Geschätzer Ap-Wert	059
Geschätzte internationale Sonnenfleckenzahl	080 - Basierend auf 17 Stationen

Zusammenfassung auffälliger Ereignisse

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

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