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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2018 Sep 25 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
25 Sep 2018	068	006
26 Sep 2018	068	007
27 Sep 2018	068	007

Bulletin

Solar activity was very low with X-ray flux remaining below B level and no spots on the visible disk. This is expected to remain so over the next days.

No Earth directed CMEs have been identified in coronagraph images.

Proton flux levels were at background values and are expected to remain so.

Solar wind remained slightly elevated with solar wind speed within the 400-450 km/s range. Total magnetic field was 2-7nT with Bz variable. The magnetic field phi angle was mainly in the negative sector but seems to have switched into the positive sector recently. Solar wind speed is expected to remain slightly enhanced and may possible slightly increase under the influence of some patchy negative polarity open fields in the Southern hemisphere near the equator.

Geomagnetic conditions were quiet to unsettled (NOAA Kp 1-3 and local K Dourbes 1-2) and are expected to remain so.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 26 Stationen.

Solarindizes für den 24 Sep 2018

Wolf-Zahl Catania	000
10cm Solarflux	069
AK Chambon La Forêt	012
AK Wingst	008
Geschätzer Ap-Wert	008
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 35 Stationen

Zusammenfassung auffälliger Ereignisse

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

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