Affichage des archives de lundi, 27 octobre 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Oct 27 1226 UTC

Prévisions SIDC

Éruptions solaires

Major flares expected (X-class flares expected, probability >=50%)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Warning condition (activity levels expected to increase, but no numeric forecast given)

	Flux de 10 cm	Ap
27 Oct 2014	215	014
28 Oct 2014	210	006
29 Oct 2014	205	005

Bulletin

Catania sunspot group 88 (NOAA AR 2192) remains very active and, since the previous bulletin, produced eight M-class flares and about ten C-class flares. The strongest was an M7.1, peaking at 00:34 UT today. For none of these flares an associated Earth-bound CME was observed. The region retains its area and magnetic complexity and is expected to produce additional flares up to the X-level. Due to it's current location, a major eruption from Catania group 88 may result in a rise of the proton flux. A long filament in the northern hemisphere is continuing its passage across the solar central meridian. Its possible eruption may lead to an Earth- directed CME. ACE observations indicate a slow solar wind, with a speed ranging between 350 and 450 km/s. The interplanetary magnetic field magnitude reaches values up to 8 nT. Mostly quiet geomagnetic conditions are observed and are expected to continue with potentially an isolated time slot of active (K=4) conditions.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 082, sur la base de 13 stations.

Indices solaires pour 26 Oct 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	217
AK Chambon La Forêt	019
AK Wingst	012
Ap estimé	012
Nombre international de taches solaires estimé	101 - Basé sur 15 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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