Affichage des archives de vendredi, 14 août 2015

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2015 Aug 14 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Active conditions expected (A>=20 or K=4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
14 Aug 2015	093	007
15 Aug 2015	089	006
16 Aug 2015	086	019

Bulletin

The strongest observed flare, among four C-class flares reported during last 24 hours, was the C1.9 flare peaking at 02:00 UT, on August 14. The flare originated from the fast emerging NOAA AR 2401 which has potential to produce more C-class flares in the coming hours. No Earth directed CMEs were observed during last 24 hours.

The Earth is still inside the slow solar wind with the speed of about 320 km/s. The interplanetary magnetic field magnitude is slightly elevated, having the value of about 8nT. The fast flow from the equatorial coronal hole, which reached the central meridian on August 12 might arrive at the Earth tomorrow. The arrival of a CME-driven shock wave, associated with the partial halo CME from August 12, might be expected in early morning of August 16 possibly producing unsettled to active geomagnetic conditions. The geomagnetic conditions are presently quiet and we expect them to remain so in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 044, sur la base de 15 stations.

Indices solaires pour 13 Aug 2015

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	095
AK Chambon La Forêt	009
AK Wingst	013
Ap estimé	012
Nombre international de taches solaires estimé	054 - Basé sur 21 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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