Affichage des archives de mardi, 18 novembre 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Nov 18 1208 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
18 Nov 2014	167	015
19 Nov 2014	169	013
20 Nov 2014	175	013

Bulletin

Although NOAA AR 2209 maintains the beta-gamma-delta configuration of its photospheric magnetic field, it produced only two weak C-class flares during the past 24 hours. The strongest flare was the C1.8 flare peaking at 08:09 UT today. It was not associated with a CME. No other active region produced C-class flares. We expect flaring activity on the C-level to continue in the NOAA AR 2209, with an M-class flare possible but unlikely. The Earth is currently inside a slow (around 450 km/s) solar wind flow with average (5-6 nT) interplanetary magnetic field (IMF) magnitude. Even if the IMF was strongly fluctuating, it was directed predominantly southward during several hours yesterday, resulting in intervals of active geomagnetic conditions (K = 4) reported by Dourbes (one interval) and IZMIRAN (two intervals). Other than that, the geomagnetic conditions are quiet and are expected to remain so, possibly with isolated intervals of active conditions.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 066, sur la base de 08 stations.

Indices solaires pour 17 Nov 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	168
AK Chambon La Forêt	022
AK Wingst	012
Ap estimé	012
Nombre international de taches solaires estimé	073 - Basé sur 17 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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