Affichage des archives de jeudi, 12 mai 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 May 12 1238 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
12 May 2016	091	005
13 May 2016	092	006
14 May 2016	093	005

Bulletin

Over the past 24 hours solar activity has been very low. The largest flare was a B8.2 class flare, produced by Active Region (AR) 2542 (Gai:Beta), which peaked at 14:22 UT today. There are three other inactive ARs on the solar disk (AR 2543, AR 2544, AR 2545). No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a probability of C-class flares. The solar wind parameters variations are decaying after the influence of the negative polarity coronal hole effects. The solar wind speed has decreased till approximately 400 km/s over the past 24 hours. The total magnetic field strength magnitude has decreased till 4-5 nT. The Bz component of magnetic field has been mostly negative over the past 24 hours, varying between +2 and -4 nT. Geomagnetic conditions ranged between Kp index 1-2 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. Geomagnetic activity is expected to remain low within next 2 days.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 083, sur la base de 16 stations.

Indices solaires pour 11 May 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	094
AK Chambon La Forêt	010
AK Wingst	008
Ap estimé	006
Nombre international de taches solaires estimé	077 - Basé sur 25 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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