Affichage des archives de mardi, 16 avril 2013

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2013 Apr 16 1223 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
16 Apr 2013	111	003
17 Apr 2013	110	005
18 Apr 2013	109	006

Bulletin

Four weak C-class flares were detected during the past 24 hours. Three of the observed flares originated from the Catania sunspot group 46 (NOAA AR 1723) which is growing fast and has beta-gamma configuration of the photosperic magnetic field. The C-class flares are probable, in particular from the Catania sunspot group 46. The M-class flares are possible but not very probable. The Earth is currently inside a slow solar wind with a speed of about 360 km/s. Small low-latitude coronal hole in the northern hemisphere will pass the central meridian later today, however not much impact is expected from this coronal hole. The interplanetary magnetic field magnitude is about 5 nT, with its Bz component most of the time steadily positive. The geomagnetic conditions are quiet and expected to remain so.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 061, sur la base de 11 stations.

Indices solaires pour 15 Apr 2013

Nombre de Wolf, observé par Catania	093
Flux solaire à 10 cm	113
AK Chambon La Forêt	010
AK Wingst	006
Ap estimé	005
Nombre international de taches solaires estimé	069 - Basé sur 23 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

<< Aller à l'aperçu quotidien