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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2016 May 10 1303 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
10 May 2016	090	015
11 May 2016	091	009
12 May 2016	092	009

Bulletin

Over the past 24 hours solar activity has been low. The largest flare was a B8.1 class flare, produced by Active Region (AR) 2542 (Dai :Beta-Gamma), which peaked at 23:43 UT yesterday evening. There are three more NOAA ARs currently on the solar disk: AR 2541 (Axx:Alpha), AR 2543 (Dso:Beta) and AR 2544 (Gro:Beta). One returning region will appear at the East limb within next 24 hrs. A slow and relatively narrow Coronal Mass Ejection (CME) has been detected yesterday(21:24) which evolved from a small filament eruption occurred around 20:00 UT at the region adjacent to the AR 2542. It has small probability to hit the Earth around 14-Apr-16. One more insignificant filament eruption has been observed. Solar protons have remained at background levels over the past 24 hours. Solar activity is expected to remain moderate over the next 24 hours with the probability of C-class flares around 50% from the AR 2542. The solar wind parameters started to recover from the influence of the negative coronal hole high speed stream. The speed decreased from around 700 km/s to 600 km/s over the past 24 hours. Simultaneously, the total magnetic field strength in solar wind has increased till around 6 nT, while Bz component of the magnetic field decreased till -6 nT and remained mostly negative. NOAA Kp index was ranged between 3 to 4, local K index Dourbes was ranged between 3 to 4. Conditions have meanwhile slightly decayed. Over the next 24 hrs solar wind conditions may continue to decrease.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 071, basierend auf 14 Stationen.

Solarindizes für den 09 May 2016

Wolf-Zahl Catania	070
10cm Solarflux	089
AK Chambon La Forêt	031
AK Wingst	033
Geschätzer Ap-Wert	035
Geschätzte internationale Sonnenfleckenzahl	051 - Basierend auf 27 Stationen

Zusammenfassung auffälliger Ereignisse

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

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