Affichage des archives de lundi, 7 janvier 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Jan 07 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
07 Jan 2019	071	007
08 Jan 2019	070	007
09 Jan 2019	070	004

Bulletin

The solar activity has been quiet over the past 24 hours. The Catania sunspot groups 5 (NOAA active region 2732) is now turning over the west limb. The visible solar disc becomes spotless and no significant flare is expected.

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 Earth is currently under the influence of the slightly enhanced solar wind due to the coronal hole that has reached the central meridian on December 31. The wind speed fluctuated between 480 and 566 km/s; the total magnetic field was below 6.6 nT; and the southward component fluctuated between -6 and 6 nT. The enhanced solar wind conditions are expected to persist as long as Earth remains under the influence of the solar wind associated with the coronal hole.

The geomagnetic conditions were unsettled (Kp and K-Dourbes indices reached 3) and it is expected to remain unsettled as the Earth is currently under the influence of the enhanced solar wind.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 09 stations.

Indices solaires pour 06 Jan 2019

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	072
AK Chambon La Forêt	015
AK Wingst	010
Ap estimé	010
Nombre international de taches solaires estimé	000 - Basé sur 12 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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