Affichage des archives de vendredi, 21 octobre 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Oct 21 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Active conditions expected (A>=20 or K=4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
21 Oct 2016	076	009
22 Oct 2016	077	010
23 Oct 2016	078	015

Bulletin

Over the past 24 hours solar activity has been low. there were no significant flares and all Active Regions (AR) have shown low levels of activity. No Earth directed Coronal Mass Ejections (CMEs) have been detected. 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. The solar wind speed has fluctuated between 370 and 410 km/s over the past 24 hours. The total magnetic field strength has remained around 4 nT. The Bz component fluctuated around 1 nT, ranging between -2 and +4 nT. Geomagnetic conditions ranged between Kp index 0-2 (NOAA) and local K index 0-3 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be quiet to unsettled over the next 24 hours. A small coronal hole located at central latitudes has rotated into the Western hemisphere and the resultant High Speed Stream (HSS) may enhance solar wind speeds in the coming days.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 028, sur la base de 14 stations.

Indices solaires pour 20 Oct 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	075
AK Chambon La Forêt	005
AK Wingst	003
Ap estimé	002
Nombre international de taches solaires estimé	017 - Basé sur 23 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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