Affichage des archives de vendredi, 7 novembre 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Nov 07 1230 UTC

Prévisions SIDC

Éruptions solaires

Active (M-class flares expected, probability >=50%)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
07 Nov 2014	137	006
08 Nov 2014	138	007
09 Nov 2014	139	007

Bulletin

NOAA AR 2205 continued to produce M level flares, although all four were below M3 level. The strongest was an M2.7 flare peaking at 2:49 UT followed by an M2 flare at 4:25 UT. The corresponding CME was weak and not Earth directed. Flaring at M level is expected to continue with a slight chance for an X flare. Solar wind speed was nominal and slightly decreasing from values around 470 km/s level to values around 450 km/s. Total magnetic field initially decreased below the 6nT level, but following a sector boundary crossing from a negative into a positive sector around 00:30 UT, it became more variable and increased again reaching levels close to 9nT currently, while returning to a negative sector. Bz was mostly positive or neutral but had some excursions down to -6nT before and after the sector boundary crossing. Geomagnetic conditions were quiet to unsettled (both NOAA Kp and local K Dourbes 1-3). Nominal solar wind conditions are expected to continue with associated quiet to unsettled geomagnetic conditions.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 075, sur la base de 05 stations.

Indices solaires pour 06 Nov 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	136
AK Chambon La Forêt	021
AK Wingst	008
Ap estimé	009
Nombre international de taches solaires estimé	077 - Basé sur 17 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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