Affichage des archives de vendredi, 10 octobre 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Oct 10 1235 UTC

Prévisions SIDC

Éruptions solaires

Eruptive (C-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
10 Oct 2014	120	011
11 Oct 2014	119	008
12 Oct 2014	117	008

Bulletin

The only flare reported during last 24 hours is the C1.0 flare (peaked at 18:23 UT) on October 09. The flare originated from the Catania sunspot group 67 (NOAA AR 2182) which has currently beta-gamma configuration of its photosperic magnetic field. Like majority of flares originating from this AR the C1.0 flare seems to be a confined flare, without associated mass ejection. No Earth-directed CMEs were observed during last 24 hours. The background X-ray flux is low, currenly at B-level (about B5). We expect occasional C-class flares, while M-class flares are not very probable. After the crossing of the sector boundary in the morning of October 8, the interplanetary magnetic field magnitude remained somewhat elevated. Currently the interplanetary magnetic field magnitude is about 7nT. The Bz component of the interplanetary magnetic field is still fluctuating but it has been mostly positive during last five hours. The long time elevated interplanetary magnetic field indicates possible arrival of the ICME (it is not clear what is its solar origin). The solar wind speed is low and it currently amounts about 340 km/s. We expect quiet to unsettled geomagnetic conditions to continue in the next 24 hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 024, sur la base de 15 stations.

Indices solaires pour 09 Oct 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	119
AK Chambon La Forêt	023
AK Wingst	016
Ap estimé	018
Nombre international de taches solaires estimé	047 - 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

<< Aller à l'aperçu quotidien