Affichage des archives de mercredi, 22 octobre 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Oct 22 1246 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
22 Oct 2014	204	011
23 Oct 2014	208	011
24 Oct 2014	210	011

Bulletin

Three M-class flares were detected in the past 24 hours, all of them produced by the Catania sunspot group 88 (NOAA AR 2192). The strongest flare was the M8.7 flare peaking at 01:59 UT. Based on the still incomplete SOHO/LASCO data and the absence of conspicuous eruptive signatures in the SDO/AIA data, we conclude that there was no CME associated with this flare. We expect flaring activity mostly on the M-level in this group, with a good chance for an X-class flare. As the Catania sunspot group 88 approaches the solar central meridian, a major eruption in this active region may lead to a geoeffective CME and a proton event. The Earth is currently inside a slow (around 460 km/s) solar wind flow with average (around 5 nT) interplanetary magnetic field magnitude. The geomagnetic conditions are quiet and are expected to remain so.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 095, sur la base de 10 stations.

Indices solaires pour 21 Oct 2014

Nombre de Wolf, observé par Catania	151
Flux solaire à 10 cm	199
AK Chambon La Forêt	028
AK Wingst	017
Ap estimé	017
Nombre international de taches solaires estimé	082 - Basé sur 16 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

<< Aller à l'aperçu quotidien