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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2019 Jan 24 1231 UTC

Vorhersage des SIDC

Sonneneruptionen

Quiet conditions (<50% probability of C-class flares)

Geomagnetismus

Active conditions expected (A>=20 or K=4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
24 Jan 2019	073	016
25 Jan 2019	073	008
26 Jan 2019	072	006

Bulletin

There is presently only one sunspot group observed on the visible side of the Sun. NOAA AR 2733 still has beta configuration of its photospheric magnetic field and is occasionally producing low B-class flares. We expect low solar flaring activity to persist in the coming hours, with the low probability for an isolated C-class flare. There were no Earth directed CMEs reported during last 24 hours and the solar protons remained at the background level.

The Earth is presently inside the fast solar wind (originating from the equatorial coronal hole which reached central meridian in the morning of January 19) with the speed of about 600 km/s and the interplanetary magnetic field magnitude of 8 nT. Several intervals of longer negative value of the Bz component of the interplanetary magnetic field and the fast solar wind induced disturbed geomagnetic conditions. Around the midnight and early morning of January 24 local station at Dourbes and NOAA reported K=4 and Kp=4, respectively. As the solar wind speed is rather high, although the interplanetary magnetic field magnitude already significantly decreased, we still might expect unsettled to active geomagnetic conditions in the coming hours.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 022, basierend auf 09 Stationen.

Solarindizes für den 23 Jan 2019

Wolf-Zahl Catania	///
10cm Solarflux	072
AK Chambon La Forêt	025
AK Wingst	017
Geschätzer Ap-Wert	016
Geschätzte internationale Sonnenfleckenzahl	020 - Basierend auf 20 Stationen

Zusammenfassung auffälliger Ereignisse

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

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