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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2019 Sep 16 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

Quiet conditions (<50% probability of C-class flares)

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
16 Sep 2019	068	012
17 Sep 2019	068	016
18 Sep 2019	067	016

Bulletin

Solar X-ray flux was below B level. Wit no active regions on disk X-ray flux is expected to remain at background levels.

No Earth directed CME's have been observed in coronagraph data. A filament located near N30E05 is seen erupting in SDO/AIA 304 images after 6:00UT. We await further coronagraph data to assess the possibility of an Earth-directed CME.

Proton levels were at background values and are expected to remain so.

Solar wind fluctuated around 450 km/s with magnetic field below 7nT. A period of persistent negative Bz was seen before and around midnight. The magnetic field phi angle has gradually shifted into the negative sector over this period. Solar wind conditions are expected to remain near nominal with possibly some enhancements starting in the afternoon of September 17 due to a coronal hole on the southern hemisphere.

Geomagnetic conditions have seen some active periods (NOAA Kp=4) after midnight. Geomagnetic conditions are expected to be quiet to unsettled over the next days with a possibility of isolated periods of active conditions.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 15 Stationen.

Solarindizes für den 15 Sep 2019

Wolf-Zahl Catania	000
10cm Solarflux	068
AK Chambon La Forêt	022
AK Wingst	012
Geschätzer Ap-Wert	011
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 28 Stationen

Zusammenfassung auffälliger Ereignisse

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

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