Affichage des archives de samedi, 18 janvier 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Jan 18 1513 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 Jan 2014	129	005
19 Jan 2014	132	008
20 Jan 2014	137	010

Bulletin

During last 24 hours sixteen C-class flares were reported, majority of them originated from the active region currently on and behind the East solar limb. The strongest flare was the C8.9 flare which peaked at 16:08 UT on January 17. The flare originated from the active region situated just behind the East solar limb and was associated with the CME directed southward from the Sun-Earth line. We expect C-class flares are probably also isolated M-class flare in the following 24 hours. The Earth is inside a slow solar wind with a speed of about 310 km/s. The interplanetary magnetic field is still stable with the magnitude between 2 and 3 nT. The glancing blow from the CME-driven shock wave, associated with the partial halo CME observed on January 14, is expected to arrive at the Earth today. Therefore we expect quiet to unsettled to geomagnetic conditions in the following hours. The CME-driven shock wave, associated with a partial halo CME (limb event) on January 16, could be expected on January 20-21.

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

Indices solaires pour 17 Jan 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	129
AK Chambon La Forêt	006
AK Wingst	004
Ap estimé	003
Nombre international de taches solaires estimé	054 - 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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