Affichage des archives de jeudi, 5 avril 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Apr 05 1235 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
05 Apr 2018	069	006
06 Apr 2018	069	010
07 Apr 2018	069	011

Bulletin

Over the past 24 hours solar activity has been low with no spotted regions on the solar disk. No flares have been recorded. 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. A low latitude negative polarity coronal hole currently located in the eastern hemisphere is approaching central meridian. Solar activity is expected to remain low over the next 24 hours. Only B-class flares can be expected. The solar wind speed has been slowly increasing from around 330 to 380 km/s over the past 24 hours. The total magnetic field strength has fluctuated between 1 nT and 7 nT. The Bz component has fluctuated between -3 nT and +4.5 nT. Geomagnetic conditions ranged Kp index between 1-3 (NOAA) and local K index between 1-3 (Dourbes) over the past 24 hours. Mostly quiet to unsettled geomagnetic levels are expected today and tomorrow. Active conditions can be expected from April 7 (late) due to the influences of a high speed stream coming from the low-latitude negative polarity coronal hole.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 16 stations.

Indices solaires pour 04 Apr 2018

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	069
AK Chambon La Forêt	013
AK Wingst	006
Ap estimé	006
Nombre international de taches solaires estimé	000 - Basé sur 23 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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