Affichage des archives de lundi, 12 octobre 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Oct 12 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
12 Oct 2020	073	004
13 Oct 2020	073	005
14 Oct 2020	073	006

Bulletin

There are presently two sunspot groups observed on the visible side of the solar disc. Catania group 44 (NOAA AR region 2775) and Catania group 43 (NOAA AR region 2774) have beta and alfa configuration of their photospheric magnetic field, respectively. Solar flaring activity is low and there were no C-class or even B-class flares reported during last 24 hours. We expect a low level of flaring activity in the coming hours. The B-class and isolated C-class flares are possible, although not very probable. During last 24 hours no Earth directed CMEs have been observed in coronagraph data, and proton flux levels remained at background values.

Earth is presently inside the slow solar wind with the speed of about 320 km/s. The interplanetary magnetic field magnitude is around 5 nT. The geomagnetic conditions are quiet, and we expect quiet to possibly unsettled conditions in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 016, sur la base de 19 stations.

Indices solaires pour 11 Oct 2020

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	073
AK Chambon La Forêt	006
AK Wingst	003
Ap estimé	002
Nombre international de taches solaires estimé	020 - Basé sur 30 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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