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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2019 Aug 30 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Minor storm expected (A>=30 or K=5)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
30 Aug 2019	066	004
31 Aug 2019	066	015
01 Sep 2019	066	025

Bulletin

The solar activity has been quiet over the past 24 hours. The Sun is currently spotless and the X-ray flux remained below B-level. Solar activity is expected to remain at low levels for the next 24 hours.

No Earth-directed coronal mass ejections (CME) were observed over the past 24 hours in the available coronagraph imagery. The greater than 10 MeV proton flux remained at background levels over the past 24 hours and is expected to remain at low levels. A large low latitude coronal hole passed the central meridian of the Sun yesterday.

The Earth is currently under the influence of nominal solar wind conditions, but will enhance later today or tomorrow. The solar wind speed has fluctuated between 350 and 420 km/s. The total magnetic field strength has fluctuated between 1 nT and 6 nT over the past 24 hours. The Bz component fluctuated around 0 nT, ranging between -3 and +5 nT (as recorded by ACE). Geomagnetic conditions ranged between Kp index 1-2 (NOAA) and local K index 0-2 (Dourbes) over the past 24 hours.

The solar wind speed has seen a small increase this morning which may be the initial signatures of the High Speed Stream (HSS) from a recurrent low- latitude equatorial coronal hole of positive polarity that passed the solar central meridian a couple of days ago, the full effects are anticipated to arrive later today/tomorrow. Active geomagnetic conditions may be experienced as a consequence.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 21 Stationen.

Solarindizes für den 29 Aug 2019

Wolf-Zahl Catania	///
10cm Solarflux	066
AK Chambon La Forêt	008
AK Wingst	004
Geschätzer Ap-Wert	003
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 28 Stationen

Zusammenfassung auffälliger Ereignisse

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

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