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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Apr 28 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
28 Apr 2017	079	008
29 Apr 2017	078	008
30 Apr 2017	078	008

Bulletin

The solar activity is extremely low without even B-class flares reported in the last 24 hours. We expect the low level of activity to continue in the coming hours, however B-class flares are still possible. The CME first clearly seen in the SOHO LASCO C2 field of view at about 07:36 UT on April 28 (after a long data gap) seem to be rather narrow with the bulk of the CME mass directed northward of the Sun-Earth line. From the currently available observations it does not seem very probable that this CME will arrive at the Earth. More will be reported when data become available. No Earth directed CMEs have been observed in the past 24 hours. The Earth is presently inside the slow solar wind with the speed of 400 km/s, and the interplanetary magnetic field magnitude amounts about 5 nT. The geomagnetic conditions are presently quiet and we expect them to stay so in the coming hours.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 036, basierend auf 16 Stationen.

Solarindizes für den 27 Apr 2017

Wolf-Zahl Catania	///
10cm Solarflux	078
AK Chambon La Forêt	009
AK Wingst	008
Geschätzer Ap-Wert	008
Geschätzte internationale Sonnenfleckenzahl	027 - Basierend auf 28 Stationen

Zusammenfassung auffälliger Ereignisse

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

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