Affichage des archives de mardi, 20 juin 2017

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2017 Jun 20 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
20 Jun 2017	074	008
21 Jun 2017	075	010
22 Jun 2017	076	011

Bulletin

Over the past 24 hours solar activity has been low. No significant flares have been recorded. No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar activity is expected to remain low over the next 24 hours with a small probability of C-class flares and a very low probability of M-class flares. Active Region (AR) 2663, which produced several B-class flares, is approaching the west limb. An AR currently on the east solar limb has shown some evidence of activity, producing several small CMEs which may enhance activity levels in the coming days. The solar wind speed has decreased from around 500 to 400 km/s over the past 24 hours. The total magnetic field strength has fluctuated between 3 and 4 nT. The Bz component fluctuated around 0 nT. Geomagnetic conditions ranged between Kp index 0-2 (NOAA) and local K index 0-2 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be quiet.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 033, sur la base de 25 stations.

Indices solaires pour 19 Jun 2017

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	074
AK Chambon La Forêt	009
AK Wingst	006
Ap estimé	005
Nombre international de taches solaires estimé	028 - Basé sur 35 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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