Affichage des archives de jeudi, 22 mars 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Mar 22 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
22 Mar 2018	069	004
23 Mar 2018	068	013
24 Mar 2018	068	023

Bulletin

Solar activity was at very low levels. The Sun is spotless. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.

Solar activity is expected to remain at very low levels.

Solar wind parameters are at nominal levels. Solar wind speed undulated between 320 km/s and 350 km/s, and Bz varied mostly between -4 and +3 nT (DSCOVR). The interplanetary magnetic field was mostly directed towards the Sun. Geomagnetic activity was at quiet levels.

Quiet to unsettled geomagnetic conditions are expected with a chance on an active or minor storming episode from wind streams associated with diffuse CHs. The chance on an isolated minor storming interval is likely to increase by 24 March with the expected arrival of the wind stream related to the extension of the negative polarity southern polar CH.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 12 stations.

Indices solaires pour 21 Mar 2018

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	069
AK Chambon La Forêt	009
AK Wingst	006
Ap estimé	004
Nombre international de taches solaires estimé	000 - Basé sur 28 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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