Archiv von Sonntag, 30 Dezember 2018 anzeigen

Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2018 Dec 30 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
30 Dec 2018	069	009
31 Dec 2018	069	006
01 Jan 2019	069	003

Bulletin

Solar activity remained at very low levels. The Sun was spotless. No earth-directed coronal mass ejections (CMEs) were observed over the last 24 hours. The greater than 10 MeV proton flux was at nominal values. A negative polarity equatorial coronal hole (CH) is starting its transit of the central meridian.

Solar activity is expected to remain at very low levels.

Earth remained under the influence of the High Speed Stream (HSS) associated with the positive polarity coronal hole (CH). Solar wind speed varied mostly between 490 and 550 km/s, with a brief maximum of 565 km/s around 16UT (DSCOVR). Bz varied between -5 and +5 nT. The interplanetary magnetic field was directed away from the Sun (positive sector). Geomagnetic activity ranged from quiet to unsettled conditions.

Quiet to unsettled geomagnetic conditions are expected, an isolated active interval remains possible.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 10 Stationen.

Solarindizes für den 29 Dec 2018

Wolf-Zahl Catania	///
10cm Solarflux	069
AK Chambon La Forêt	015
AK Wingst	012
Geschätzer Ap-Wert	011
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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