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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2020 Feb 15 1231 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
15 Feb 2020	071	005
16 Feb 2020	071	007
17 Feb 2020	071	007

Bulletin

The solar activity has been quiet over the past 24 hours. The visible solar disc is spotless and the X-ray flux is below B-level. The solar activity is expected to remain at low levels over the next 24 hours.

No earth-directed coronal mass ejections (CMEs) have been observed in the available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values.

The solar wind parameters were at nominal levels: the wind speed range was 307-360 km/s, the total interplanetary magnetic fields were below 5.5 nT, and the southward magnetic component fluctuated between -4.5 nT and 2.5 nT. The solar wind conditions are expected to remain at background levels for the next 24-hour period. The high-speed streams from the equatorial coronal hole (negative polarity) that reached the meridian on February 13 may slightly enhance the solar wind parameters in about 2 days.

The geomagnetic conditions were quiet and are expected to remain so.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 18 Stationen.

Solarindizes für den 14 Feb 2020

Wolf-Zahl Catania	///
10cm Solarflux	071
AK Chambon La Forêt	003
AK Wingst	///
Geschätzer Ap-Wert	002
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 20 Stationen

Zusammenfassung auffälliger Ereignisse

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

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