Affichage des archives de mardi, 9 décembre 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Dec 09 1225 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
09 Dec 2014	135	010
10 Dec 2014	135	005
11 Dec 2014	145	006

Bulletin

Solar activity has slightly increased with several C-class flares, originating from NOAA active region 2230. The strongest flares were C8.1 and C8.6 flares, probably not accompanied by a CME. NOAA 2230 has a beta configuration of it's photospheric magnetic field and it's trailing part has grown in size. No Earth directed CMEs were observed. Flares at the C-level are expected, with an increased chance for M-flares (30% probability). The solar wind speed reached high values (up to 700 km/s) during the first half of the period and then decreased to current values near 530 km/s. The magnitude of the interplanetary magnetic field is stable around 5 nT. A few time slots of active conditions were reached (to 4 for local K at Dourbes and estimated NOAA Kp). Quiet to unsettled magnetic conditions are expected.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 051, sur la base de 08 stations.

Indices solaires pour 08 Dec 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	133
AK Chambon La Forêt	035
AK Wingst	020
Ap estimé	021
Nombre international de taches solaires estimé	045 - Basé sur 18 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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