Affichage des archives de samedi, 7 mars 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Mar 07 1231 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
07 Mar 2020	070	008
08 Mar 2020	070	008
09 Mar 2020	070	008

Bulletin

The solar activity was at low levels over the past 24 hours. The sun was spotless and the X-ray flux was below B-level. The solar activity is expected to remain at low levels for the next 24 hours since no sunspots is visible on the disc.

No earth-directed coronal mass ejections (CMEs) have been identified in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values.

The hight speed streams from the south polar coronal hole continued to slightly influence the solar wind environment near Earth. The solar wind parameters show a mostly ambient background and slow solar wind speed regime with minor enhancement: the solar wind speed ranged between 310 km/s and 380 km/s, the total interplanetary magnetic field peaked up to 9.5 nT, and the southward component fluctuating between -5 nT and 7 nT. The solar wind environment is expected to remain mostly in the slow wind speed regime with minor enhancements due to the influence of the south polar coronal hole hight speed streams.

The geomagnetic conditions were quiet with few periods of unsettled condition observed by Dourbes station (K-Dourbes = 3). We expect the geomagnetic conditions to remain mostly quiet wit possible periods of unsettled condition.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 22 stations.

Indices solaires pour 06 Mar 2020

Nombre de Wolf, observé par Catania	000
Flux solaire à 10 cm	070
AK Chambon La Forêt	008
AK Wingst	004
Ap estimé	004
Nombre international de taches solaires estimé	000 - Basé sur 21 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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