Archiv von Sonntag, 29 Mai 2016 anzeigen

Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2016 May 29 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

C-class flares expected, (probability >=50%)

Geomagnetismus

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

Sonnenprotonen

Quiet

	10cm Fluss	Ap
29 May 2016	087	013
30 May 2016	087	013
31 May 2016	087	005

Bulletin

Only B-class flares were observed during the last 24 hours. The strongest was a B7.2 flare peaking at 06:56UT (29 May) and produced by NOAA 2548. A long-duration B3.4 event (peaking at 03:21UT) had the spotless active region near the northeast limb as its source. The associated coronal mass ejection had no earth-directed component. Small region NOAA 2549 was stable and produced a B2 flare. No earth-directed coronal mass ejections (CMEs) were observed.

There remains a chance on an isolated C-class flare.

Earth remained under the weakening influence of a coronal hole (CH) high speed stream (HSS). Solar wind speed decreased from an initial range between 450 and 550 km/s to values between 400 and 450 km/s at the end of the observing period. Bz varied mostly between -6 and +6 nT. The interplanetary magnetic field was directed towards the Sun. Quiet to unsettled geomagnetic conditions were observed, with Dourbes recording an active episode during the 21UT-interval.

Quiet to active geomagnetic conditions are expected with the arrival of the HSS from the northern CH later today or tomorrow. There's a small chance on an isolated minor storming episode.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 031, basierend auf 11 Stationen.

Solarindizes für den 28 May 2016

Wolf-Zahl Catania	///
10cm Solarflux	088
AK Chambon La Forêt	022
AK Wingst	016
Geschätzer Ap-Wert	018
Geschätzte internationale Sonnenfleckenzahl	032 - Basierend auf 25 Stationen

Zusammenfassung auffälliger Ereignisse

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

Alle Zeiten in UTC

<< Zum Tagesübersicht