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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Jul 22 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
22 Jul 2017	069	016
23 Jul 2017	069	017
24 Jul 2017	069	008

Bulletin

With no spotted regions on disk, no Solar flaring activity was recorded and this is expected to remain so. No Earth directed CMEs have been observed in coronagraph data. Solar proton fluxes are at background values and are expected to remain so.

Solar wind saw the continued influence of a coronal hole high speed stream. Solar wind speed declined from a peak over 700 km/s to around 550 km/s presently. Total magnetic field remained around 7nT throughout the period. Bz was mostly variable but saw some excursions to -7nT. Over the next 2 days we should see a return to nominal Solar wind conditions. Geomagnetic conditions were quiet to active (both local K Dourbes and NOAA Kp 1-4) with only a limited number of active periods. Geomagnetic conditions are expected to be quiet to unsettled over the next days.

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

Solarindizes für den 21 Jul 2017

Wolf-Zahl Catania	000
10cm Solarflux	069
AK Chambon La Forêt	019
AK Wingst	016
Geschätzer Ap-Wert	018
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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