Affichage des archives de jeudi, 14 novembre 2013

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2013 Nov 14 1204 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Warning condition (activity levels expected to increase, but no numeric forecast given)

	Flux de 10 cm	Ap
14 Nov 2013	172	008
15 Nov 2013	174	008
16 Nov 2013	168	017

Bulletin

The strongest flare observed during last 24 hours was a confined M1.4 flare (peaked at 15:20 UT, on November 13), originating from the NOAA AR 1897. We expect C-class and possibly M-class flares, while X-class flares are possible but not very probable. Catania sunspot group 35 (NOAA AR 1890) is at the moment close to the west solar limb, therefore, we maintain the warning condition for a proton event during the following hours. The Earth is still inside a slow solar wind flow with the speed of about 370 km/s. The interplanetary magnetic field is stable with the magnitude of about 4 nT. The geomagnetic conditions are quiet and expected to remain so during the following hours. We expect quiet to active geomagnetic conditions late on November 16, due to arrival of a fast flow associated with the low- latitude coronal hole in the northern hemisphere.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 132, sur la base de 05 stations.

Indices solaires pour 13 Nov 2013

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	171
AK Chambon La Forêt	006
AK Wingst	002
Ap estimé	002
Nombre international de taches solaires estimé	107 - Basé sur 19 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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