Affichage des archives de mercredi, 19 novembre 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Nov 19 1428 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
19 Nov 2014	169	011
20 Nov 2014	173	015
21 Nov 2014	178	013

Bulletin

No flares were reported during the past 24 hours, although the X-ray background flux remains around the C1 level. The NOAA AR 2209 maintains the beta-gamma-delta configuration of its photospheric magnetic field, so we expect flaring activity on the C-level, with an isolated M-class flare possible but unlikely. A filament situated around N20W40 seems to undergo an eruption, although due to its small size we do not expect a large CME to occur (more information will be provided as the coronagraph data becomes available). The Earth is currently inside a slow (around 420 km/s) solar wind flow with the magnitude of the interplanetary magnetic field (IMF) up to 6 nT. Due to this very slight elevation of the IMF magnitude, an interval of K = 4 was reported by Dourbes, IZMIRAN, and NOAA. We expect quiet to unsettled (K < 4) geomagnetic conditions, possibly with isolated intervals of active (K = 4) conditions.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 058, sur la base de 10 stations.

Indices solaires pour 18 Nov 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	167
AK Chambon La Forêt	017
AK Wingst	010
Ap estimé	010
Nombre international de taches solaires estimé	065 - Basé sur 13 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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