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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2014 Apr 23 1228 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
23 Apr 2014	138	003
24 Apr 2014	134	005
25 Apr 2014	132	005

Bulletin

Only 5 low-level C-class flares were recorded over the last 24 hours. Active regions NOAA 2038 (2), 2035 (1) and 2034 (2, from behind the west limb) were the sources. A CME first visible in LASCO/C2 at 15:12UT originated from a filament eruption in the northeast solar quadrant. Another CME, first visible in LASCO/C2 at 16:36UT, was related to a backside solar flare. None of these CMEs has an earth-directed component. Further C-class flaring is expected. Solar wind speed has been varying between 400 and 450km/s, with Bz between -4 and +2nT. A small equatorial coronal hole will reach the central meridian tonight. The geomagnetic field may be impacted around 27 April. Geomagnetic conditions have been quiet, and are expected to remain so.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 063, basierend auf 17 Stationen.

Solarindizes für den 22 Apr 2014

Wolf-Zahl Catania	///
10cm Solarflux	145
AK Chambon La Forêt	007
AK Wingst	004
Geschätzer Ap-Wert	003
Geschätzte internationale Sonnenfleckenzahl	095 - Basierend auf 23 Stationen

Zusammenfassung auffälliger Ereignisse

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

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