Affichage des archives de mardi, 8 janvier 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Jan 08 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
08 Jan 2019	071	003
09 Jan 2019	070	004
10 Jan 2019	070	004

Bulletin

The solar activity has been quiet over the past 24 hours. The visible solar disc remained spotless, and no significant flare has been recorded. Quiet flaring conditions are expected for the next 24-hour period.

No Earth directed Coronal Mass Ejection has been observed. The greater than 10 MeV solar protons flux remained at nominal levels over the past 24 hours and is expected to remain so.

The solar wind parameters showed a slow return toward the ambient background and slow solar wind speed regime. The wind speed decreased from 530 to 420 km/s. Total interplanetary magnetic field strength was remaining below 6 nT. The southward magnetic component fluctuated between -5 and 5 nT. The solar wind speed is expected to continue its return toward nominal values.

The geomagnetic conditions were quiet with a short unsettled period (K-Dourbes index reached 3 on January 7 at 23:00 and 24:00 UT). The conditions are expected to remain quiet.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 14 stations.

Indices solaires pour 07 Jan 2019

Nombre de Wolf, observé par Catania	000
Flux solaire à 10 cm	072
AK Chambon La Forêt	011
AK Wingst	007
Ap estimé	006
Nombre international de taches solaires estimé	000 - Basé sur 15 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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