Affichage des archives de dimanche, 6 novembre 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Nov 06 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

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

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
06 Nov 2016	077	006
07 Nov 2016	076	007
08 Nov 2016	075	033

Bulletin

Solar activity was very low in the past 24 hours. No flares were observed. A partial halo CME is visible in SoHO/LASCO C2 images from 00:00 UT onwards on November 5. The ejection is mostly directed towards the North-East and has an angular extent of 200 degrees. The speed is measured to be at most 400 km/s. The origin of the event is most likely be related to the filament eruption around 00:00 UT November 5, in the North-Western quadrant. Solar Protons have 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. Variations of the solar wind parameters were very low. Solar wind speed decreased from about 365 km/s to its current values near 315 km/s. Total Interplanetary Magnetic Field (IMF) strength fluctuated between 4.7 nT and 5.5 nT, while Bz fluctuated between +3.2 nT and -3.1 nT. As the result the geomagnetic conditions have been low in the past 24 hours, (K Dourbes between 0 and 3; NOAA Kp between 0 and 2). The geomagnetic environment is expected to continue at low levels today (November 6) and tomorrow (November 7). However, late on the day three (November 8) or the day four (November 9, early in the morning) Earth may experience the passage of the flanks of the CME. Given the low speed and the direction of the CME effects are estimated not to be very strong with possibly minor up to moderate geomagnetic storms.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 024, sur la base de 10 stations.

Indices solaires pour 05 Nov 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	077
AK Chambon La Forêt	005
AK Wingst	002
Ap estimé	001
Nombre international de taches solaires estimé	026 - Basé sur 18 stations

Résumé des événements marquants

Données fournies par le Solar Influences Data analysis Center© - SIDC - Traité par SpaceWeatherLive

Toutes les heures sont indiquées en UTC

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