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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2018 Sep 04 1230 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
04 Sep 2018	068	005
05 Sep 2018	068	005
06 Sep 2018	068	012

Bulletin

Solar activity was at very low levels. No earth-directed coronal mass ejections (CMEs) were observed in the available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels. A small negative polarity coronal hole is transiting the Central Meridian.

Solar activity is expected to remain at very low levels.

Around 22:45UT on 3 September, solar wind speed started a gradual increase from about 330 km/s to its current values around 400 km/s (DSCOVR). Bz varied between -7 and +5 nT, with a negative 1-hour stretch near -6 nT centered on 04:10UT. The direction of the interplanetary magnetic field was variable, being in a mostly positive sector (away from the Sun) after 05UT.

Quiet to unsettled geomagnetic conditions were observed and are expected to continue. On 6 and 7 September, active conditions are possible with the arrival of the co-rotating interaction region (CIR) and wind stream from the negative polarity CH.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 17 Stationen.

Solarindizes für den 03 Sep 2018

Wolf-Zahl Catania	000
10cm Solarflux	068
AK Chambon La Forêt	010
AK Wingst	006
Geschätzer Ap-Wert	004
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 31 Stationen

Zusammenfassung auffälliger Ereignisse

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

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