Affichage des archives de mardi, 3 avril 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Apr 03 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
03 Apr 2018	068	007
04 Apr 2018	068	005
05 Apr 2018	069	011

Bulletin

Solar activity was very low. Former NOAA actve region 2703 decayed to an area of plage. No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to remain so. Solar wind parameters variations were at background levels. Solar wind speed as registered by DSCOVR decreased from about 430 till 400 km/s. The Interplanetary Magnetic Field (IMF) was below 5 nT. Bz component varied mainly between -3 and 3 nT. Quiet geomagnetic conditions (K Dourbes between 1 and 2; NOAA Kp between 1 and 2) were registered in the past 24 hours. Mostly quiet geomagnetic levels (K Dourbes < 3) are expected on April 3 and 4. Unsettled conditions are expected on April 5 due to the possible influences of a high speed stream coming from the polar-connected positive polarity coronal hole.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 21 stations.

Indices solaires pour 02 Apr 2018

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	068
AK Chambon La Forêt	///
AK Wingst	006
Ap estimé	005
Nombre international de taches solaires estimé	000 - Basé sur 22 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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