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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Aug 13 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
13 Aug 2017	071	008
14 Aug 2017	070	015
15 Aug 2017	071	011

Bulletin

Over the past 24 hours solar activity has been very low. No significant flares have been recorded. Active Region (AR) 2670 (Mcintosh class:Hsx; Mag. type:Alpha) has been quiet, but is now approaching the west solar limb. No Earth directed Coronal Mass Ejections (CMEs) have been detected. The greater than 10MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a low probability of C-class flares. The solar wind speed has remained around 575 km/s, with several short sporadic increases to speeds up to 750 km/s, over the past 24 hours. The total magnetic field strength has been decreasing from around 10 nT to 5 nT. The Bz component fluctuated around 0 nT but was mainly positive, ranging between -5 and +7 nT. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. Several small low latitude coronal holes are currently in the Western hemisphere, and as a consequence there have been small increases in geomagnetic conditions. Geomagnetic conditions are expected to be mainly quiet with some short periods of activity.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 011, basierend auf 21 Stationen.

Solarindizes für den 12 Aug 2017

Wolf-Zahl Catania	///
10cm Solarflux	070
AK Chambon La Forêt	019
AK Wingst	012
Geschätzer Ap-Wert	014
Geschätzte internationale Sonnenfleckenzahl	011 - Basierend auf 20 Stationen

Zusammenfassung auffälliger Ereignisse

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

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