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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2016 May 20 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
20 May 2016	101	013
21 May 2016	100	011
22 May 2016	099	010

Bulletin

Over the past 24 hours solar activity has been low. The largest flares were two B3.9 class flares, produced by Active Region (AR) 2546 (Mcintosh class:Cho; Mag. type:Beta). All other ARs have been quiet. Solar protons have remained at background levels over the past 24 hours. There have been no Earth directed CMEs detected. Solar activity is expected to remain low over the next 24 hours with a small probability of C-class flares. The solar wind speed has remained around 450 km/s over the past 24 hours. The total magnetic field strength has fluctuated between 5 and 9 nT. The Bz component fluctuated between -5 and +6 nT, but has been largely positive. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. A large Northern positive polar coronal hole is currently positioned in the Western hemisphere of the Sun that may enhance solar wind speeds at the Earth.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 047, basierend auf 13 Stationen.

Solarindizes für den 19 May 2016

Wolf-Zahl Catania	///
10cm Solarflux	099
AK Chambon La Forêt	016
AK Wingst	008
Geschätzer Ap-Wert	008
Geschätzte internationale Sonnenfleckenzahl	045 - Basierend auf 22 Stationen

Zusammenfassung auffälliger Ereignisse

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

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