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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Mar 07 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
07 Mar 2017	072	016
08 Mar 2017	073	009
09 Mar 2017	073	014

Bulletin

Solar activity was very low during the period. The solar disk is currently devoided of sunspots. A small active region is about to rotate over the east limb. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10MeV proton flux was at nominal levels.

Quiet flaring conditions are expected to continue.

Earth remained under the influence of the high speed stream (HSS) from the trans-equatorial extension from the negative southern polar coronal hole (CH). Solar wind speed varied between 650 and 550 km/s, with Bz mostly fluctuating between -5 nT and +6 nT. The interplanetary magnetic field was directed towards the Sun. A diffuse positive equatorial CH is transiting the central meridian.

The geomagnetic field ranged from quiet to active levels, with a minor storming episode reported during the 18-21UT interval. Mostly quiet to active geomagnetic conditions are expected, with still a chance on a minor storming interval. The particle stream associated with the positive CH is expected to arrive around 9 March resulting in only unsettled to active conditions.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 19 Stationen.

Solarindizes für den 06 Mar 2017

Wolf-Zahl Catania	///
10cm Solarflux	072
AK Chambon La Forêt	038
AK Wingst	026
Geschätzer Ap-Wert	028
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 17 Stationen

Zusammenfassung auffälliger Ereignisse

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

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