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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2018 Jan 26 1230 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
26 Jan 2018	070	012
27 Jan 2018	069	015
28 Jan 2018	069	008

Bulletin

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

Solar activity is expected to remain at very low levels.

Solar wind became enhanced as the wind speed, initially steady at 420 km/s, started a gradual increase around 01UT to values near 500 km/s by the end of the period. Bz oscillated between -6 and +7 nT (DSCOVR). The interplanetary magnetic field (IMF) was mostly directed towards the Sun. A small negative equatorial coronal hole (CH) is transiting the central meridian.

The geomagnetic field was at quiet to unsettled levels and is expected to remain so during the next few days. An active episode is possible from the moderate speed wind streams associated with the observed CHs.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 09 Stationen.

Solarindizes für den 25 Jan 2018

Wolf-Zahl Catania	000
10cm Solarflux	070
AK Chambon La Forêt	015
AK Wingst	010
Geschätzer Ap-Wert	009
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 13 Stationen

Zusammenfassung auffälliger Ereignisse

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

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