Affichage des archives de mercredi, 10 mai 2017

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2017 May 10 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
10 May 2017	068	005
11 May 2017	067	009
12 May 2017	065	008

Bulletin

There were no C-class, and even B-class flares, reported in the last 24 hours. We expect that the solar activity will remain at this low level, and we do not expect C-class flares in the coming hours, while isolated B-class flares are still possible but not very probable. No Earth directed CMEs have been observed and the solar protons remained at background level in the past 24 hours.

The solar wind speed is presently about 360 km/s, and the interplanetary magnetic field magnitude (IMF) is 6nT. Due to the crossing of the sector boundary, simultaneously with the sudden change of the phi angle, the IMF increased to the value of 8nT (at about 16:00 UT on May 09). This slightly elevated value of IMF was maintained until shortly before 24:00 UT when it dropped back to the value of about 5nT, again with the sudden change of the phi angle. The geomagnetic conditions are presently quiet to unsettled and we expect them to stay so in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 26 stations.

Indices solaires pour 09 May 2017

Nombre de Wolf, observé par Catania	011
Flux solaire à 10 cm	069
AK Chambon La Forêt	011
AK Wingst	008
Ap estimé	008
Nombre international de taches solaires estimé	000 - Basé sur 34 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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