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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Aug 27 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
27 Aug 2017	078	006
28 Aug 2017	077	005
29 Aug 2017	076	008

Bulletin

Over the past 24 hours solar activity has been low. There have been several B-flares flares originated at NOAA AR 2671 (McIntosh: Fai; Mag.Type: Beta-Gamma) and at NOAA AR 2672 (McIntosh: Eai; Mag.Type: Beta- Gamma). The biggest flare B5.4 peaked yestreday (26-Aug-2017) at 21:00 UT. No Earth-directed CMEs have been detected over the past 24 hours. Solar protons have remained at background levels. NOAA AR 2672 and one returning active region are expected to produce more B-class flares over the next 24 hours. C class flares are also not excluded. The solar wind speed has fluctuated around 360 km/s over the past 24 hours. The total magnetic field strength has fluctuated around 6 nT. The Bz component varied between -4.1 and 4.4 nT being mainly positive. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-2 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be quiet for the next two days. Quiet to unsettled conditions can be expected on day three due to the weak influence of a negative polarity CH HSS.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 033, basierend auf 22 Stationen.

Solarindizes für den 26 Aug 2017

Wolf-Zahl Catania	///
10cm Solarflux	078
AK Chambon La Forêt	010
AK Wingst	005
Geschätzer Ap-Wert	004
Geschätzte internationale Sonnenfleckenzahl	049 - Basierend auf 32 Stationen

Zusammenfassung auffälliger Ereignisse

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

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