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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2018 May 08 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
08 May 2018	069	013
09 May 2018	070	008
10 May 2018	070	005

Bulletin

Solar activity was at very low levels. Active region NOAA 2708 is decaying fast and is barely visible. A new sunspot region has rounded the east limb (Catania 81; Location: N06E71), but it is small and -so far- inactive. 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 very low levels, with a slight chance on an isolated C-class flare.

Earth is under the influence of the high speed stream (HSS) from an elongated negative polarity equatorial coronal hole (CH). Solar wind speed varied in a slightly declining band between 700 and 560 km/s (DSCOVR). Bz varied between -8 and +7 nT. The interplanetary magnetic field was mostly directed towards the Sun. Geomagnetic activity was at quiet to unsettled levels, with an isolated active episode recorded by Dourbes during the 15-18UT interval.

Quiet to unsettled geomagnetic conditions are expected, with a chance on an isolated active interval.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 021, basierend auf 22 Stationen.

Solarindizes für den 07 May 2018

Wolf-Zahl Catania	014
10cm Solarflux	070
AK Chambon La Forêt	024
AK Wingst	020
Geschätzer Ap-Wert	021
Geschätzte internationale Sonnenfleckenzahl	016 - Basierend auf 38 Stationen

Zusammenfassung auffälliger Ereignisse

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

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