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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2015 Oct 22 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
22 Oct 2015	130	006
23 Oct 2015	130	006
24 Oct 2015	130	013

Bulletin

The Sun produced four C-class flares during the past period. The strongest flare was a C7.7 flare (peaking at 17:56 UT on October 21), originating from NOAA 2436. NOAA 2434 produced a long duration C4.4 flare (peaking at 3:40 UT on October 22), accompanied with a dimming and a CME. The CME was first observed in LASCO/C2 at 3:12 UT and is propagating southwest of the Sun-Earth line with a projected speed of about 800 km/s. Potentially an Earth-directed component will arrive on October 24. Flaring at the C-level is expected, but also an M-class flare is not excluded.

The solar wind speed gradually decreased from 450-480 km/s to current values near 400 km/s. The magnitude of the interplanetary magnetic field started at 10 nT, but quickly lowered to 5 nT. Geomagnetic conditions were quiet to unsettled and are expected to continue. The CME of this UT morning may cause a disturbance on October 24 around noon.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 096, basierend auf 09 Stationen.

Solarindizes für den 21 Oct 2015

Wolf-Zahl Catania	///
10cm Solarflux	129
AK Chambon La Forêt	017
AK Wingst	011
Geschätzer Ap-Wert	011
Geschätzte internationale Sonnenfleckenzahl	084 - Basierend auf 15 Stationen

Zusammenfassung auffälliger Ereignisse

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

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