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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2018 May 25 1329 UTC

Vorhersage des SIDC

Sonneneruptionen

C-class flares expected, (probability >=50%)

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
25 May 2018	074	003
26 May 2018	075	005
27 May 2018	074	007

Bulletin

Solar activity was at low levels. The largest flare B9.8 originated at NOAA AR 2710 (McIntosh: Axx; Mag.Type: Alpha) peaked yesterday (24-May-2018) at 12:30 UT. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels. Solar activity is expected to be at low levels with some probability for C flares and minor chance for M flares. Solar wind parameters returned to the background fluctuations level. The solar wind speed gradually decreased from 500 km/s till about 380 km/s. The total magnetic field was below 5 nT. The Bz component fluctuated around 0nT between -2.5 and +2.5 nT. Geomagnetic conditions ranged between Kp index 0-2 (NOAA) and local K index 0-2 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be quiet.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 033, basierend auf 20 Stationen.

Solarindizes für den 24 May 2018

Wolf-Zahl Catania	047
10cm Solarflux	074
AK Chambon La Forêt	008
AK Wingst	004
Geschätzer Ap-Wert	003
Geschätzte internationale Sonnenfleckenzahl	035 - Basierend auf 27 Stationen

Zusammenfassung auffälliger Ereignisse

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

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