Affichage des archives de lundi, 6 novembre 2017

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2017 Nov 06 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
06 Nov 2017	071	003
07 Nov 2017	071	010
08 Nov 2017	071	022

Bulletin

The Sun activity is very quiet: The solar disc remains spotless; no flares have been observed in past 24 h and no active regions visible on the disc. The X-ray flux is expected to remain below C level.

No Earth directed Coronal Mass Ejections (CMEs) have been observed and the solar protons flux remained at background levels over the past 24 hours.

Solar wind speed has continued its slow overall decline from around 350 km/s to 300 km/s. The interplanetary magnetic field magnitude remained around 4 nT and the Bz component fluctuated between -2 and 4 nT being mainly positive. The solar wind is expected to remain at its nominal conditions until a renewed increase of solar wind conditions under the influence of a high speed stream associated with the extension of the northern polar coronal hole that has transited the central meridian on Nov 04.

Geomagnetic conditions were quiet (local K Dourbes 0-2, NOAA Kp 0-1) and are expected to remain quiet until the high speed stream reaches Earth by Nov 07 onwards.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 24 stations.

Indices solaires pour 05 Nov 2017

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	071
AK Chambon La Forêt	005
AK Wingst	001
Ap estimé	001
Nombre international de taches solaires estimé	000 - Basé sur 26 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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