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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2014 May 30 1221 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
30 May 2014	105	008
31 May 2014	107	003
01 Jun 2014	111	003

Bulletin

Solar flare activity was very low over the last 24 hours. The strongest event was a B4-flare peaking at 18:19UT on 29 May, produced by NOAA 2073. There are currently 5 sunspot groups visible. They are all small and magnetically simple, including the two new groups Catania 65 (near east limb) and Catania 59. The active region on the Sun's farside continues to produce quite strong CMEs (e.g. 29 May at 09:24UT) and is expected to round the east-northeast limb tomorrow. Flaring activity is expected to be low, with a chance on a C-class flare. Solar wind speed first declined from 380 to 310 km/s around midnight, then gradually increased again to 360 km/s. Bz varied between -7 and +6 nT. The geomagnetic field was quiet with locally some K=3 episodes. A small coronal hole that passed the central meridian on 25-26 May can still influence the geomagnetic field later today. Geomagnetic conditions are expected to remain quiet, though locally a brief active episode is possible.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 043, basierend auf 14 Stationen.

Solarindizes für den 29 May 2014

Wolf-Zahl Catania	///
10cm Solarflux	103
AK Chambon La Forêt	010
AK Wingst	008
Geschätzer Ap-Wert	007
Geschätzte internationale Sonnenfleckenzahl	037 - Basierend auf 16 Stationen

Zusammenfassung auffälliger Ereignisse

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

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