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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Mar 25 1231 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
25 Mar 2017	072	008
26 Mar 2017	072	024
27 Mar 2017	072	024

Bulletin

In the past 24 hours, no C flares were observed. Very low solar activity (no C flares) is expected in the next 24 hours. Over the past 24 hours, solar wind speed measured by DSCOVR decreased from about 570 to 495 km/s, while the magnitude of the Interplanetary Magnetic Field (IMF) ranged between about 1 and 5 nT. This is indicative of a transition to nominal solar wind conditions after the passage of the high speed stream from a positive coronal hole. Quiet geomagnetic conditions (K Dourbes between 1 and 2; NOAA Kp between 0 and 2) were registered in the past 24 hours. Quiet to unsettled geomagnetic conditions (K Dourbes < 4) are expected on March 25 and 26. The arrival of a high speed stream from a large, recurrent coronal hole is expected on March 27. Consequently, active geomagnetic conditions (K Dourbes = 4) are possible, with a chance for minor geomagnetic storm intervals (K Dourbes = 5).

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 016, basierend auf 24 Stationen.

Solarindizes für den 24 Mar 2017

Wolf-Zahl Catania	///
10cm Solarflux	072
AK Chambon La Forêt	008
AK Wingst	006
Geschätzer Ap-Wert	005
Geschätzte internationale Sonnenfleckenzahl	013 - Basierend auf 27 Stationen

Zusammenfassung auffälliger Ereignisse

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

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