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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2020 Jul 20 1240 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
20 Jul 2020	069	010
21 Jul 2020	069	006
22 Jul 2020	069	004

Bulletin

Solar flaring activity was at very low levels. No significant flares have been recorded. Solar activity is expected to remain 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 background levels the past 24 hours. It is expected to remain so in the next 24 hours. The greater than 2 MeV electron flux was at nominal levels over the past 24 hours and is expected to stay at nominal levels for the next 24 hours.

The solar wind speed near Earth varied between 310 and 365 km/s (DSCOVR). The polarity of the Interplanetary Magnetic Field (IMF) was predominantly oriented away the Sun (phi angle in the positive sector). Bz fluctuated between -5 and +4 nT. The magnitude of the magnetic field varied between 1 and 6 nT. A coronal hole extending from the equator to southern latitudes is crossing central meridian. Its effects are to be expected from late July 23rd. For the next 24 hours the solar wind speed is expected to be enhanced, reflecting the influence of the coronal hole that crossed central meridian on July 16th .

The geomagnetic conditions were quiet to unsettled, while the values registered for the past 24 hours were 1-3 for K Dourbes and 1-2 for NOAA Kp. Unsettled to active conditions (K Dourbes = 4) geomagnetic conditions are expected for the next 24 hours.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 29 Stationen.

Solarindizes für den 19 Jul 2020

Wolf-Zahl Catania	///
10cm Solarflux	069
AK Chambon La Forêt	009
AK Wingst	005
Geschätzer Ap-Wert	004
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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