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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 May 27 1309 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 May 2017	080	002
28 May 2017	082	006
29 May 2017	083	007

Bulletin

Over the past 24 hours solar activity has been low. There have been several B-flares flares originated at NOAA AR 2659 (McIntosh: Dai; Mag.Type: Beta). The biggest flare B2.9 peaked yesterday (26-Mar-2017) at 21:23 UT. No Earth-directed CMEs have been detected over the past 24 hours. Solar protons have remained at background levels over the past 24 hours. Solar X-Ray background level is expected to remain low. NOAA AR 2659 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 variations of the solar wind parameters were weak. Solar wind speed remained below 310 km/s during the last 24 hours. The magnitude of the Interplanetary Magnetic Field (Bt) remained below 5 nT. The Bz component fluctuated between between -3 and +3 nT. Geomagnetic conditions have been very quiet in the past 24 hours (K Dourbes between 0 and 2; NOAA Kp between 0 and 2). Geomagnetic activity is expected to continue at very low levels today (27-May-2016). Active conditions are still possible from today midnight due to the possible arrival of the 23-May-2017 CME.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 025, basierend auf 24 Stationen.

Solarindizes für den 26 May 2017

Wolf-Zahl Catania	023
10cm Solarflux	080
AK Chambon La Forêt	006
AK Wingst	004
Geschätzer Ap-Wert	003
Geschätzte internationale Sonnenfleckenzahl	027 - Basierend auf 36 Stationen

Zusammenfassung auffälliger Ereignisse

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

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