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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2021 Jan 19 1234 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
19 Jan 2021	074	009
20 Jan 2021	075	009
21 Jan 2021	074	008

Bulletin

Solar flaring activity remains low, with only isolated B-class flares reported. All the flaring activity originates from the NOAA AR 2797, the only numbered sunspot group presently observed on the visible side of the solar disc. We expect a low level of flaring activity to persist in the coming hours with occasional B-class flares. The isolated C-class flares are possible, but not very probable. During last 24 hours no Earth directed CMEs were observed in coronagraph data, and proton flux levels remained at background values.

The solar wind speed is presently around 320 km/s and it is slowly increasing. This increase might be due to the possible arrival of solar wind associated with the low latitude extension of the southern polar coronal hole. The interplanetary magnetic field magnitude is about 5 nT. The geomagnetic conditions are presently quiet and we expect quiet to unsettled geomagnetic conditions in the coming hours.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 017, basierend auf 09 Stationen.

Solarindizes für den 18 Jan 2021

Wolf-Zahl Catania	///
10cm Solarflux	075
AK Chambon La Forêt	009
AK Wingst	///
Geschätzer Ap-Wert	004
Geschätzte internationale Sonnenfleckenzahl	012 - Basierend auf 20 Stationen

Zusammenfassung auffälliger Ereignisse

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

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