Affichage des archives de mercredi, 14 mai 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 May 14 1203 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
14 May 2014	159	007
15 May 2014	158	010
16 May 2014	159	008

Bulletin

The solar activity is low and the strongest flare observed during last 24 hours was long duration C6.8 flare peaking at 22:24 UT on May 13. The flare originated from the Catania sunspot group 43 (NOAA AR 2056). No clear signatures of CME possibly associated with this flare were observed in the coronagraph data. We expect C-class flares, in particular from the newly and fast emerging active region currently situated close to the east solar limb. An isolated M-class flare is possible but not very probable. Earth is currently inside of a slow solar wind with a speed of 350 km/s. The interplanetary magnetic field magnitude is about 6 nT. The fast flow associated with the small equatorial corona hole which reached the central meridian on May 12 might arrive at the Earth on May 15, producing at most unsettled geomagnetic conditions. We expect quiet to unsettled geomagnetic conditions in the following 48 hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 116, sur la base de 14 stations.

Indices solaires pour 13 May 2014

Nombre de Wolf, observé par Catania	171
Flux solaire à 10 cm	159
AK Chambon La Forêt	007
AK Wingst	004
Ap estimé	003
Nombre international de taches solaires estimé	091 - Basé sur 31 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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