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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2021 Jan 20 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
20 Jan 2021	078	006
21 Jan 2021	076	006
22 Jan 2021	076	006

Bulletin

During last 24 hours the solar flaring activity slightly increased. Several B-class and an isolated C-class flares were reported, all originating from the NOAA AR 2797. The impulsive C1.0 flare peaked at 17:54 UT on January 19. Presently available coronagraph observations (there is a large data gap in observations) do not show signatures of the possibly associated CME. We expect such a level of flaring activity to persist in the coming hours. 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 340 km/s and the interplanetary magnetic field magnitude is about 6 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): 019, basierend auf 13 Stationen.

Solarindizes für den 19 Jan 2021

Wolf-Zahl Catania	025
10cm Solarflux	078
AK Chambon La Forêt	007
AK Wingst	///
Geschätzer Ap-Wert	006
Geschätzte internationale Sonnenfleckenzahl	017 - Basierend auf 16 Stationen

Zusammenfassung auffälliger Ereignisse

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

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