Affichage des archives de samedi, 14 mai 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 May 14 1234 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Minor storm expected (A>=30 or K=5)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
14 May 2016	094	012
15 May 2016	096	018
16 May 2016	095	009

Bulletin

Over the past 24 hours solar activity has been increased with respect to the previous 2 days. The largest flare is ongoing C9 class flare, most probably coming from the western hemisphere of the solar disk, which already peaked at 11:30 UT today. Another C2.5 class flare was produced by Active Region (AR) 2543 (Dao:Beta), which peaked at 09:31 UT this morning. Eight more B class flares were observed over the past 24 hours. AR 2542, AR 2543, AR 2545 are going to move over the solar limb in the next 2-3 days, while one returning region will appear at the East limb within next 24 hours. No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar proton fluxes 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 started to increase around midnight today due to the beginning of the expected solar sector boundary crossing by the Earth. The solar wind speed has increased from approximately 350 km/s till 400 km/s at 12:00 UT today. The total magnetic field strength also increased till about 9 nT in magnitude. The Bz component decreased from -5 nT till -8 nT (at 12:00 UT today). Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. Geomagnetic activity is expected to remain low today. However, from tomorrow one can expect active geomagnetic conditions.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 087, sur la base de 13 stations.

Indices solaires pour 13 May 2016

Nombre de Wolf, observé par Catania	070
Flux solaire à 10 cm	093
AK Chambon La Forêt	017
AK Wingst	010
Ap estimé	009
Nombre international de taches solaires estimé	074 - Basé sur 29 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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