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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2019 Sep 29 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Active conditions expected (A>=20 or K=4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
29 Sep 2019	068	018
30 Sep 2019	068	010
01 Oct 2019	068	005

Bulletin

Solar X-ray flux remained below B class levels throughout the period. The Solar disk is spotless and the X-ray flux is expected to remain at or below background levels.

There were no Earth-directed Coronal Mass Ejections (CME) observed in coronagraph data.

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

The solar wind speed has decreased from 650 and 540 km/s over the past 24 hours. The total magnetic field strength has fluctuated around 5 nT. The Bz ranged between -4 and 4 nT. Geomagnetic conditions ranged between Kp index 2-5 (NOAA) and local K index 1-4 (Dourbes).

The enhanced solar wind conditions experienced are from a high speed stream (HSS) from a recurrent positive polarity coronal hole. The solar wind speeds are now starting to abate and should return to nominal levels in a couple of days.

Geomagnetic conditions are expected to be unsettled, with some active periods due to HSS solar wind enhancements.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 11 Stationen.

Solarindizes für den 28 Sep 2019

Wolf-Zahl Catania	///
10cm Solarflux	067
AK Chambon La Forêt	029
AK Wingst	027
Geschätzer Ap-Wert	030
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 26 Stationen

Zusammenfassung auffälliger Ereignisse

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

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