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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2014 Oct 08 1353 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

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

Sonnenprotonen

Quiet

	10cm Fluss	Ap
08 Oct 2014	125	015
09 Oct 2014	124	008
10 Oct 2014	120	006

Bulletin

Solar activity is very low, with only three C-class flare reported during last 24 hours. The strongest flare was the C1.6 flare (peaked at 16:00 UT on October 07) originating from the not yet classified active region at about N15 E25. No Earth-directed CMEs were observed during last 24 hours. We expect solar activity to remain low with occasional C-class flares. ACE solar wind data indicate possible arrival of the sector boundary or ICME (solar origin is not yet understood). The sector change was observed at about 05:30 UT this morning. The Bz component of the interplanetary magnetic field is fluctuating and it had few intervals of negative value (up to - 8 nT). Simultaneously to the longest interval of negative Bz (about 4 hours) the magnitude of the interplanetary magnetic field had reached the value of about 10 nT. Currently the interplanetary magnetic field magnitude is about 4 nT and the solar wind speed is still low with the value of about 350 km/s. Due to negative intervals of Bz component of the interplanetary magnetic field we have currently active geomagnetic conditions (K=4 reported by local station at Dourbes). We expect unsettled to active geomagnetic conditions to continue in the coming hours.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 059, basierend auf 15 Stationen.

Solarindizes für den 07 Oct 2014

Wolf-Zahl Catania	104
10cm Solarflux	125
AK Chambon La Forêt	007
AK Wingst	006
Geschätzer Ap-Wert	005
Geschätzte internationale Sonnenfleckenzahl	052 - Basierend auf 21 Stationen

Zusammenfassung auffälliger Ereignisse

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

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