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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2019 Jan 25 1230 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
25 Jan 2019	072	022
26 Jan 2019	072	015
27 Jan 2019	071	011

Bulletin

During last 24 hours the level of solar flaring activity increased, however all reported flares were only A-class and B-class flares. Since NOAA AR 2733 still has beta configuration of its photospheric magnetic field we expect such a level of solar activity to persist in the coming hours. The isolated C-class flares are also possible, although not very probable. There were no Earth directed CMEs reported during last 24 hours and the solar protons remained at the background level.

The Earth is still inside the fast solar wind with the speed of 610 km/s. The interplanetary magnetic field magnitude is presently about 5 nT. The longer intervals of negative value of the Bz component of the interplanetary magnetic field and the high solar wind speed induced disturbed geomagnetic conditions. Around the midnight and early morning of January 25 local station at Dourbes and NOAA reported K=5 and Kp=5, respectively. Presently geomagnetic conditions are unsettled to active and we expect such a conditions to persist in the coming hours, with possibly isolated intervals of minor storm conditions (up to K=5).

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 025, basierend auf 11 Stationen.

Solarindizes für den 24 Jan 2019

Wolf-Zahl Catania	///
10cm Solarflux	072
AK Chambon La Forêt	026
AK Wingst	021
Geschätzer Ap-Wert	021
Geschätzte internationale Sonnenfleckenzahl	023 - Basierend auf 19 Stationen

Zusammenfassung auffälliger Ereignisse

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

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