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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2019 Oct 12 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
12 Oct 2019	069	005
13 Oct 2019	069	007
14 Oct 2019	068	007

Bulletin

Solar activity was at very low levels, no significant flares have been recorded. The Sun remained spotless. 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.

Solar activity is expected to remain at very low levels.

The solar wind speed gradually decreased from 500 km/s to 400 km/s (ACE). The total magnetic field varied between 1 and 5 nT. The direction of the interplanetary magnetic field (phi angle) was predominantly directed away from the Sun (positive sector). Bz was mostly negative but weak with values between -4 and +2 nT. Geomagnetic activity was at quiet to unsettled levels, with the Kp index (NOAA) and the local k index (Dourbes) recording values of 1-3 and 0-3, respectively.

Quiet conditions are expected to continue for Oct 12 with isolated active conditions possible Oct 13 and 14, due to the influence of a negative polarity coronal hole which began to traverse the central meridian on Oct 10.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 16 Stationen.

Solarindizes für den 11 Oct 2019

Wolf-Zahl Catania	000
10cm Solarflux	069
AK Chambon La Forêt	017
AK Wingst	010
Geschätzer Ap-Wert	009
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 18 Stationen

Zusammenfassung auffälliger Ereignisse

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

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