Affichage des archives de mardi, 1 mai 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 May 01 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
01 May 2018	070	006
02 May 2018	070	007
03 May 2018	070	007

Bulletin

Solar activity was very low with just two minor B flares originating from the plage region which is turning around the West limb. There are no spotted regions on disk and X ray flux is expected to remain at background levels.

No Earth directed CMEs have been detected in coronagraph data.

The solar proton flux levels are at background values and are expected to remain so.

Solar wind speed was near a maximum of 470-480km/s at the start of the period and then slowly declining to around 410-420 km/s currently. Total magnetic field reached a maximum of close to 8nT and afterwards also gradually declined to current values of 5nT. Bz was mostly positive and never below -2.5nT. Solar wind conditions should be near nominal throughout the next days.

Geomagnetic conditions were quiet to unsettled and are expected to be mainly quiet over the next days.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 24 stations.

Indices solaires pour 30 Apr 2018

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	070
AK Chambon La Forêt	008
AK Wingst	007
Ap estimé	007
Nombre international de taches solaires estimé	/// - Basé sur /// 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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