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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2019 Jan 27 1335 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
27 Jan 2019	076	007
28 Jan 2019	077	006
29 Jan 2019	076	007

Bulletin

During last 24 hours NOAA AR 2733 was source of B-class flares, and an isolated GOES C5.0 flare (peaked at 13:22 UT on January 26). The NOAA AR 2733 is approaching the West solar limb, but it still has beta configuration of its photospheric magnetic field and is expected to be the source of B-class and possibly also isolated C-class flares in the coming hours. There were no wide Earth directed CMEs reported during last 24 hours. The solar protons remained at the background level.

The solar wind speed continues to decrease and it presently amounts about 430 km/s. The interplanetary magnetic field magnitude is 4 nT. Equatorial coronal hole of negative polarity reached central meridian this morning. Coronal hole is very patchy, but rather large and possibly connected with the southern polar coronal hole. The associated fast solar wind might be expected at the Earth on January 30. The geomagnetic conditions are presently quiet to unsettled and we expect quiet geomagnetic conditions in the coming hours.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 022, basierend auf 05 Stationen.

Solarindizes für den 26 Jan 2019

Wolf-Zahl Catania	///
10cm Solarflux	077
AK Chambon La Forêt	012
AK Wingst	008
Geschätzer Ap-Wert	007
Geschätzte internationale Sonnenfleckenzahl	028 - Basierend auf 11 Stationen

Zusammenfassung auffälliger Ereignisse

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

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