Affichage des archives de dimanche, 8 avril 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Apr 08 1230 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
08 Apr 2018	067	004
09 Apr 2018	068	010
10 Apr 2018	067	011

Bulletin

Over the past 24 hours solar activity has been low with no active 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 has crossed the central meridian two days ago. Solar activity is expected to remain low over the next 24 hours. Only B-class flares can be expected. Solar wind parametrs variations have been very low. The solar wind speed is below 385 km/s. The total magnetic field strength has fluctuated between 2nT and 5nT. The Bz component has fluctuated between -3.5nT and +4nT. Geomagnetic conditions ranged between Kp index 0-2 (NOAA) and local K index 0-2 (Dourbes) over the past 24 hours. Mostly quiet geomagnetic levels are expected for the whole day. Unsettled and even active conditions can be expected from tomorrow 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 22 stations.

Indices solaires pour 07 Apr 2018

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	067
AK Chambon La Forêt	008
AK Wingst	005
Ap estimé	004
Nombre international de taches solaires estimé	000 - Basé sur 29 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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