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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2019 Dec 03 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
03 Dec 2019	070	002
04 Dec 2019	069	005
05 Dec 2019	069	004

Bulletin

Solar activity was at very low levels. The visible solar disk was spotless. No earth-directed coronal mass ejections (CMEs) have been observed in 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 decreased from around 340 km/s to near 300 km/s by the end of the period (ACE). The interplanetary magnetic field (phi angle) was predominantly directed towards the Sun (negative sector) for the first part of the period but switched to the positive sector from 3 UT. Bz varied between -3 and +5 nT.

Geomagnetic activity was quiet, with the Kp index (NOAA) registering 0 for the whole period and the local k index (Dourbes) recording values of 0-1. Quiet conditions are expected to continue, with a small possibility of an isolated unsettled interval on December 4, due to the influence of the extension from the southern polar coronal hole.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 17 Stationen.

Solarindizes für den 02 Dec 2019

Wolf-Zahl Catania	///
10cm Solarflux	070
AK Chambon La Forêt	003
AK Wingst	001
Geschätzer Ap-Wert	001
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 23 Stationen

Zusammenfassung auffälliger Ereignisse

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

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