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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Oct 03 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
03 Oct 2017	085	010
04 Oct 2017	085	010
05 Oct 2017	084	015

Bulletin

Solar activity was at very low levels. The 2 visible sunspot groups were quiet. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.

Quiet flaring conditions are expected, with a small chance on a C-class flare.

Solar wind speed varied between 390 and 440 km/s (DSCOVR), ending the period near 410 km/s. Bz fluctuated between -6 and +5 nT. The interplanetary magnetic field was mostly directed away from the Sun, with "towards" excursions from 02UT onwards. A small negative equatorial coronal hole (CH) transited the central meridian on 01-03 October.

The geomagnetic field was at quiet to unsettled levels, and is expected to remain so. The particle stream associated with the aforementioned CH may start influencing the earth environment on 04 or 05 October, increasing the likelihood on an active geomagnetic episode.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 027, basierend auf 16 Stationen.

Solarindizes für den 02 Oct 2017

Wolf-Zahl Catania	///
10cm Solarflux	086
AK Chambon La Forêt	010
AK Wingst	005
Geschätzer Ap-Wert	006
Geschätzte internationale Sonnenfleckenzahl	034 - Basierend auf 29 Stationen

Zusammenfassung auffälliger Ereignisse

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

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