Affichage des archives de jeudi, 23 avril 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Apr 23 1231 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
23 Apr 2020	070	011
24 Apr 2020	071	013
25 Apr 2020	071	007

Bulletin

Solar X-ray flux remained below B level. There are no spotted regions on disk and Solar flaring is expected to remain below C level over the next days.

There were no Earth directed Coronal Mass Ejections (CMEs) observed in the available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels over the past 24 hours and is expected to stay at nominal levels. The greater than 2 MeV electron flux enhanced slightly over the past 24 hours. A further slight increase of the electron flux over the next days may be expected associated to ongoing slightly elevated Solar wind conditions.

Solar wind remained slightly enhanced with an overall decaying Solar wind speed, currently at around 400 km/s. The total magnetic field was at or below a nominal 5nT. Bz was variable and the magnetic field phi angle mostly in the negative sector. Solar wind is expected to remain enhanced over the next 24-48 hours before returning to nominal conditions.

Geomagnetic conditions were quiet (NOAA Kp 1-2, local K Dourbes 0-2). Geomagnetic conditions are expected to be quiet to unsettled with an occasional active episode possible.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 29 stations.

Indices solaires pour 22 Apr 2020

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	071
AK Chambon La Forêt	009
AK Wingst	012
Ap estimé	010
Nombre international de taches solaires estimé	000 - Basé sur 34 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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