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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2016 Oct 28 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Minor storm expected (A>=30 or K=5)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
28 Oct 2016	080	021
29 Oct 2016	079	016
30 Oct 2016	080	018

Bulletin

NOAA 2603 produced a few small B-class flares including a B3.1 at 07:17UT, the strongest event of the period. The region will rotate over the west limb during the next 24 hours. Two other sunspot regions, Catania 50 (near disk centre) and an unnumbered region near N10W50 are small and quiet. No earth-directed coronal mass ejections (CMEs) were observed.

Quiet flaring conditions are expected to continue, with a chance on an isolated C-class flare.

Earth remained under the influence of the high speed stream (HSS) from the huge coronal hole (CH). Solar wind speed initially decreased further to values near 550 km/s by about 06UT before increasing again to its current values between 650 and 700 km/s. Bz varied between -6 and +4 nT, with the interplanetary magnetic field (IMF) directed away from the Sun (positive). Kp ranged from unsettled conditions to minor geomagnetic storming, while K Dourbes ranged from quiet conditions to minor storming.

The geo-environment is expected to remain under the influence of the CH HSS. Quiet to minor storm conditions are expected.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 038, basierend auf 11 Stationen.

Solarindizes für den 27 Oct 2016

Wolf-Zahl Catania	///
10cm Solarflux	079
AK Chambon La Forêt	039
AK Wingst	034
Geschätzer Ap-Wert	034
Geschätzte internationale Sonnenfleckenzahl	025 - Basierend auf 21 Stationen

Zusammenfassung auffälliger Ereignisse

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

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