Affichage des archives de mardi, 8 octobre 2013

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2013 Oct 08 1228 UTC

Prévisions SIDC

Éruptions solaires

Eruptive (C-class flares expected, probability >=50%)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
08 Oct 2013	114	010
09 Oct 2013	117	007
10 Oct 2013	120	016

Bulletin

Solar activity has been rather low in the past 24 hours, with a C2.3 flare occurring in NOAA AR 1856, on October 07, 1540 UT (peak time). It doesn't appear to be associated with a CME. A filament eruption occurred on October 8, after 0800 UT, close to the North-East limb. It is associated with a CME, which is not geoeffective. We expect eruptive conditions (C flares possible) for the next 48 hours, as AR 1856 is still capable of an isolated C-class flare. To a lesser extent, NOAA AR 1861 might also produce a isolate C-class event. Geomagnetic activity is currently very low and is expected to remain so for the next 48 hours. Unsettled to active conditions are foreseen by the end of October 10, due to the possible arrival of the CME observed on October 6, combined with the influence of a small coronal hole in the northern hemisphere.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 066, sur la base de 14 stations.

Indices solaires pour 07 Oct 2013

Nombre de Wolf, observé par Catania	136
Flux solaire à 10 cm	112
AK Chambon La Forêt	006
AK Wingst	004
Ap estimé	004
Nombre international de taches solaires estimé	052 - Basé sur 26 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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