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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Jun 15 1231 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

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

Sonnenprotonen

Quiet

	10cm Fluss	Ap
15 Jun 2017	075	006
16 Jun 2017	075	015
17 Jun 2017	076	008

Bulletin

Catania reports two sunspot groups on the visible side of the solar disc, group 32 (NOAA AR 2662) and group 33 (not numbered by NOAA). Only reported flare in the last 24 hours was B1.9 flare which originated from the Catania sunspot group 33 (peaked at 19:07 UT on June 14). All the observed CMEs, during the last 24 hours, were narrow and will not arrive to the Earth.

The Earth is presently inside the slow solar wind with the speed of about 440 km/s, and the interplanetary magnetic field magnitude is 4 nT. Two large coronal holes, one on the north solar hemisphere and one on the south solar hemisphere, have reached central meridian yesterday evening. The associated fast solar wind is expected to arrive at the Earth early in the morning of June 18. The fast solar wind associated with the large equatorial coronal hole which has reached the central meridian in the morning of June 12, is expected to arrive at the Earth early morning of June 16. The geomagnetic conditions are presently quiet, we expect unsettled to active conditions due to arrival of the fast solar wind starting from June 16.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 031, basierend auf 25 Stationen.

Solarindizes für den 14 Jun 2017

Wolf-Zahl Catania	011
10cm Solarflux	074
AK Chambon La Forêt	013
AK Wingst	008
Geschätzer Ap-Wert	008
Geschätzte internationale Sonnenfleckenzahl	012 - Basierend auf 37 Stationen

Zusammenfassung auffälliger Ereignisse

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

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