Archiv von Montag, 8 April 2013 anzeigen

Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2013 Apr 08 1134 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
08 Apr 2013	141	004
09 Apr 2013	144	005
10 Apr 2013	145	003

Bulletin

Three out of nine active regions reported by NOAA today have beta-gamma configuration of the photospheric magnetic field (NOAA ARs 1713, 1718, and 1719). So, despite no C-class flares today, we expect flaring activity on the C-level, with an M-class flare possible but not very likely. An eruption in the NOAA AR 1714 (Catania sunspot group 34) was detected around 02:00 UT on April 8, accompanied by a local soft X-ray flux peak at 01:44 UT at C1.1 level (no flare was reported). Coronal dimmings and a post-eruption arcade observed by SDO/AIA indicate the eruption of a CME. However, SOHO/LASCO did not detect any CME in association with this event, and STEREO coronagraphs have a data gap. Due to presumed weakness of the event (below the detectability threshold of LASCO), any geomagnetic consequences are unlikely. The Earth is currently inside a slow (around 350 km/s) solar wind flow with weak to average (3-4 nT) interplanetary magnetic field magnitude. We expect quiet geomagnetic conditions.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 090, basierend auf 09 Stationen.

Solarindizes für den 7 Apr 2013

Wolf-Zahl Catania	///
10cm Solarflux	138
AK Chambon La Forêt	007
AK Wingst	005
Geschätzer Ap-Wert	005
Geschätzte internationale Sonnenfleckenzahl	082 - Basierend auf 21 Stationen

Zusammenfassung auffälliger Ereignisse

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

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