Het archief bekijken van woensdag 22 november 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 Nov 22 1230 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
22 Nov 2017	074	012
23 Nov 2017	074	005
24 Nov 2017	074	004

Bulletin

Over the past 24 hours solar activity has been quiet. No significant flares have been recorded. All Active Regions (AR) have shown low levels of activity. No Earth directed Coronal Mass Ejections (CMEs) have been detected. A small back-sided CME was detected off of the West solar limb, but is not expected to reach the Earth. 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 been decreasing from 650 to 500 km/s over the past 24 hours. The total magnetic field strength has fluctuated around 5 nT. The Bz component has fluctuated between positive and negative, between -5 and +5 nT. Geomagnetic conditions ranged between Kp index 2-5 (NOAA) and local K index 1-4 (Dourbes) over the past 24 hours. A positive polar coronal hole was positioned in the Western hemisphere of the Sun and produced a high- speed stream (HSS) that enhanced solar wind speeds and as a consequence increased geo-activity levels. Geomagnetic conditions are expected to return to quiet conditions throughout the day.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 19 stations.

Zon indexen voor 21 Nov 2017

Wolfgetal Catania	///
10cm zonneflux	073
AK Chambon La Forêt	035
AK Wingst	029
Geschatte Ap	031
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 16 stations

Overzicht opvallende gebeurtenissen

Aangeboden door het Solar Influences Data Analysis Center© - SIDC - Verwerkt door SpaceWeatherLive

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