Affichage des archives de samedi, 6 avril 2013

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2013 Apr 06 1209 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
06 Apr 2013	137	005
07 Apr 2013	138	010
08 Apr 2013	141	007

Bulletin

Solar activity has been active during the past 24 hours, with an M2.2 flare and two C flares. The M flare peaked at 17:48 UT on April 5, and was produced by new NOAA AR 11719 on the East limb. More C flares are expected within the next 48 hours, with a good chance for an M flare, especially from NOAA AR 11719 and 11718. Solar wind speed as measured by ACE has been steadily increasing from about 260 km/s in the second part of April 5 till about 360 km/s around 12h UT on April 6. This could be due to the arrival of an expected coronal hole high speed stream. A further increase of the solar wind speed is possible on April 6. Geomagnetic activity was at quiet levels (NOAA Kp between 1 and 2) during the past 24 hours. Quiet (K Dourbes < 4) conditions are predicted for April 6 to 8 with a slight chance for active periods due to the possible arrival of a coronal hole high speed stream.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 074, sur la base de 08 stations.

Indices solaires pour 5 Apr 2013

Nombre de Wolf, observé par Catania	116
Flux solaire à 10 cm	134
AK Chambon La Forêt	008
AK Wingst	003
Ap estimé	002
Nombre international de taches solaires estimé	082 - Basé sur 11 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