Affichage des archives de mardi, 25 juin 2013

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2013 Jun 25 1239 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
25 Jun 2013	114	010
26 Jun 2013	112	011
27 Jun 2013	110	011

Bulletin

Solar activity has been eruptive during the past 24 hours, featuring a C2.0 and a C3.0 flare, both from NOAA AR 11775. More C flares are probable within the next 48 hours, with a slight chance for an M flare. A filament eruption took place near 30N 15-45E on June 24, around 23h UT. This material is not expected to travel to Earth. The solar wind is still in a coronal hole high speed stream regime, with solar wind speeds ranging between about 500 km/s and 570 km/s, while the IMF decreased from 6 to 4 nT. Solar wind speeds are expected to remain high, but continue their gradual decrease on June 25 and 26. Geomagnetic activity was at quiet to active levels (K Dourbes between 1 and 4; NOAA Kp between 2 and 4) during the past 24 hours. Quiet conditions (K Dourbes < 4) are expected for June 25 to 27.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 050, sur la base de 11 stations.

Indices solaires pour 24 Jun 2013

Nombre de Wolf, observé par Catania	112
Flux solaire à 10 cm	121
AK Chambon La Forêt	023
AK Wingst	018
Ap estimé	018
Nombre international de taches solaires estimé	071 - Basé sur 20 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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