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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2013 Dec 16 1211 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
16 Dec 2013	152	006
17 Dec 2013	150	008
18 Dec 2013	145	008

Bulletin

The background X-ray radiation is situated in the top B-level (B7). The strongest solar flare was a C3.6 flare originating from Catania sunspot region 80 (NOAA AR 1917). The probability for C-flares is around 70%, M-flares around 20%, the chances for an X-flare are low. The >10MeV proton flux measured by GOES had a small bump, but remained below the event threshold (10 pfu) and is now back at background level. The origin of this enhancement currently is unclear. No Earth directed CMEs were observed in coronagraphic data. We are currently inside a slow solar wind stream with a solar wind speed of 400 km/s, as observed by ACE. The interplanetary magnetic field currently is weak with a magnitude of about 5 nT. Geomagnetic conditions are quiet (K<3) to unsettled (K=3) and are expected to remain so.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 080, basierend auf 11 Stationen.

Solarindizes für den 15 Dec 2013

Wolf-Zahl Catania	///
10cm Solarflux	156
AK Chambon La Forêt	011
AK Wingst	006
Geschätzer Ap-Wert	005
Geschätzte internationale Sonnenfleckenzahl	091 - Basierend auf 17 Stationen

Zusammenfassung auffälliger Ereignisse

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

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