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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2018 Jul 20 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
20 Jul 2018	070	010
21 Jul 2018	069	008
22 Jul 2018	069	006

Bulletin

The visible side of the Sun remains to be spotless and consequently, there is no flaring activity reported during last 24 hours. We expect such a low flaring activity to persist in the coming hours. No Earth directed CMEs were observed, and the solar protons remained at the background level.

The solar wind speed is presently about 450 km/s and the interplanetary magnetic field magnitude is about 5 nT. It is presently unclear if the small increase of the solar wind speed (up to 480 km/s was reached at 09 UT this morning), and interplanetary magnetic field (up to 7 nT), are due to a structure in the slow solar wind or a solar wind flow associated with patchy equatorial coronal hole (reached central meridian on July 16). The geomagnetic conditions are presently unsettled to quiet and we expect such a geomagnetic conditions to persist in the coming hours.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 24 Stationen.

Solarindizes für den 19 Jul 2018

Wolf-Zahl Catania	000
10cm Solarflux	071
AK Chambon La Forêt	009
AK Wingst	006
Geschätzer Ap-Wert	004
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 31 Stationen

Zusammenfassung auffälliger Ereignisse

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

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