Archiv von Samstag, 12 April 2014 anzeigen

Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2014 Apr 12 1147 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Major magstorm expected (A>=50 or K>=6)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
12 Apr 2014	140	048
13 Apr 2014	145	020
14 Apr 2014	150	011

Bulletin

Four C-class flares were observed originating from Catania sunspot region 24 (NOAA AR 2035), the largest one being a C5.3 peaking at 15:01 UT, April 11. The C5.3 flare was associated with an Eastward directed CME (first measurement of LASCO/C2 at 14:48 UT) with angular width of about 100 degrees and speed of 568 km/s as estimated by CACTus. At most a shock could arrive at Earth around 12h UT on April 14. More C-class flares are expected during the next 48 hours, especially from Catania sunspot region 24. Also an isolated M-class flare is possible. ACE observed an increase in the magnitude of the IMF from 7 to 11 nT, with a negative Bz currently reaching -9 nT. This resulted in active to minor storm magnitude conditions during the first half the UT day (local K=4 at Dourbes and even NOAA Kp=5). Solar wind speed has gradually declined to 350 km/s. Unsettled to maximally major storm conditions are expected due to currently negative Bz and the arrival of the CH high speed stream.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 053, basierend auf 10 Stationen.

Solarindizes für den 11 Apr 2014

Wolf-Zahl Catania	083
10cm Solarflux	138
AK Chambon La Forêt	031
AK Wingst	011
Geschätzer Ap-Wert	010
Geschätzte internationale Sonnenfleckenzahl	047 - Basierend auf 22 Stationen

Zusammenfassung auffälliger Ereignisse

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

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