Affichage des archives de mardi, 16 juillet 2013

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2013 Jul 16 1249 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 Jul 2013	114	007
17 Jul 2013	115	006
18 Jul 2013	116	013

Bulletin

The flaring activity during past 24 hours was of the low C-class level. Most of the C-class flares originated from the Catania sunspot group 30 (NOAA AR 1791) which currently has beta-gamma-delta configurations of its photospheric magnetic field, and a significant potential to produce more C-class flares and possibly also M-class flare. The flaring activity is also expected from NOAA AR 1793 situated close to the east solar limb. The Earth is currently 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 arrival of the fast flow, from the low-latitude coronal hole in the northern hemisphere which reached the central meridian yesterday, is expected on July 18. The geomagnetic conditions are quiet and expected to remain so in the following hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 051, sur la base de 13 stations.

Indices solaires pour 15 Jul 2013

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	114
AK Chambon La Forêt	017
AK Wingst	021
Ap estimé	026
Nombre international de taches solaires estimé	050 - Basé sur 24 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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