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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2014 May 29 1226 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
29 May 2014	096	008
30 May 2014	094	007
31 May 2014	098	004

Bulletin

NOAA 2071 produced the only flare of the period, a C1 flare peaking at 04:30UT this morning. The 4 sunspot regions currently visible are all small and magnetically simple. No Earth-directed CMEs were observed. An active region on the Sun's farside that produced several substantial CMEs over the past few days, is expected to round the east limb within 2 days. Flaring activity is expected to be low, with a small chance on a C-class flare. For most of the period, solar wind speed was stable around 330 km/s, with Bz varying between +6 and -5 nT. Around 08:30UT, a shock was observed in the ACE-data. Solar wind speed jumped from 330 to 380 km/s, and Bz from -5 to -8nT. The geomagnetic field was quiet, with the K index reaching 3. A small coronal hole that passed the central meridian on 25-26 May could influence the geomagnetic field starting late on 29 May. Geomagnetic conditions are expected to remain quiet, though locally a brief active episode is possible.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 035, basierend auf 15 Stationen.

Solarindizes für den 28 May 2014

Wolf-Zahl Catania	///
10cm Solarflux	099
AK Chambon La Forêt	008
AK Wingst	006
Geschätzer Ap-Wert	005
Geschätzte internationale Sonnenfleckenzahl	057 - Basierend auf 09 Stationen

Zusammenfassung auffälliger Ereignisse

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

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