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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2018 May 29 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
29 May 2018	076	004
30 May 2018	075	007
31 May 2018	075	010

Bulletin

Beta region NOAA AR 2712 produced a C2.7 flare at 17:10 UT on May 28. The chance for a C flare in the next 24 hours is estimated at 40%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

Solar wind speed near Earth as registered by DSCOVR varied between about 360 and 420 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was predominantly directed away from the Sun and its magnitude varied between about 1 and 9 nT. Bz was never below -5 nT. A negative polarity equatorial coronal hole is currently at the central meridian. The high speed stream associated with this coronal hole may arrive near Earth late on May 31 or on June 1.

Quiet geomagnetic conditions (K Dourbes between 1 and 2; NOAA Kp between 1 and 2) were registered in the past 24 hours. Quiet to unsettled levels (K Dourbes < 4) are expected on March 29, 30 and 31, with a chance for active to minor storm intervals (K Dourbes between 4 and 5) late on May 31 due to the expected arrival of the solar wind stream associated with the equatorial coronal hole.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 024, basierend auf 18 Stationen.

Solarindizes für den 28 May 2018

Wolf-Zahl Catania	022
10cm Solarflux	077
AK Chambon La Forêt	008
AK Wingst	007
Geschätzer Ap-Wert	005
Geschätzte internationale Sonnenfleckenzahl	020 - Basierend auf 31 Stationen

Zusammenfassung auffälliger Ereignisse

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

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