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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2018 May 10 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
10 May 2018	069	015
11 May 2018	069	007
12 May 2018	069	003

Bulletin

Solar activity was at very low levels. Small and inactive region NOAA 2709 (Catania 81) is currently the only visible sunspot region on the solar disk. 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 remain at very low levels.

Earth remained under the influence of the high speed stream (HSS) from an elongated negative polarity equatorial coronal hole (CH). Solar wind speed varied mostly between 560 and 610 km/s, with a short-lived peak near 670 km/s around 18UT (DSCOVR). Bz varied between -5 and +4 nT. The interplanetary magnetic field was mostly directed towards the Sun. Geomagnetic activity ranged from quiet to active levels.

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

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 011, basierend auf 20 Stationen.

Solarindizes für den 09 May 2018

Wolf-Zahl Catania	025
10cm Solarflux	070
AK Chambon La Forêt	025
AK Wingst	019
Geschätzer Ap-Wert	020
Geschätzte internationale Sonnenfleckenzahl	021 - Basierend auf 33 Stationen

Zusammenfassung auffälliger Ereignisse

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

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