Affichage des archives de lundi, 11 février 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Feb 11 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
11 Feb 2019	070	005
12 Feb 2019	069	004
13 Feb 2019	069	005

Bulletin

The solar activity has been quiet over the past 24 hours. The visible solar disc was spotless and the X-ray flux remained below B-class level. Quiet conditions are expected to continue over the next 24 hours.

No Earth directed Coronal Mass Ejections (CMEs) have been detected. The greater than 10MeV proton flux remained at background levels over the past 24 hours and is expected to remain so.

The solar wind speed has decreased from around 460 to 360 km/s over the past 24 hours. The total magnetic field strength remained below 7 nT and the Bz component fluctuated between -3.4 and +3.4 nT. The solar wind parameters are expected to remain at background levels for the next 24 hours. A southern polar coronal hole, extending to approximately -40 degrees latitude, is currently facing Earth and may cause slightly enhanced solar wind conditions in a few days.

The geomagnetic conditions have been quiet over the past 24 hours, with the Kp (NOAA) and the local K (Dourbes) indices ranging between 1 and 2. Over the next 24 hours, geomagnetic conditions are expected to remain quiet.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 19 stations.

Indices solaires pour 10 Feb 2019

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	070
AK Chambon La Forêt	008
AK Wingst	008
Ap estimé	006
Nombre international de taches solaires estimé	000 - Basé sur 14 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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