Affichage des archives de vendredi, 11 juillet 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Jul 11 1242 UTC

Prévisions SIDC

Éruptions solaires

Eruptive (C-class flares expected, probability >=50%)

Géomagnétisme

Active conditions expected (A>=20 or K=4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
11 Jul 2014	170	015
12 Jul 2014	160	011
13 Jul 2014	155	014

Bulletin

Two C-class and one M-class flares were observed in the past 24 hours. A C7.4 flare originated from Catania sunspot region 16 (NOAA AR 2113) peaking at 21:13 UT on July 10, almost immediately followed by an impulsive M1.5 flare from Catania sunspot region 5 (NOAA AR 2106). The CME of July 10 has further extended to an asymmetric halo CME, but is propagating mainly west of the Sun-Earth line. No additional Earth- affecting CMEs were identified. Flaring activity is expected to continue at the level of C-class flares, with a slight chance for an isolated M-class flare. Solar wind speed is near 400 km/s, as measured by ACE. The magnitude of interplanetary magnetic field was stable with values near 5 nT with a Bz component fluctuating between -4 and +4 nT. Geomagnetic conditions have been quiet to unsettled and are expected to remain so till the possible arrival of a glancing blow July 8 CME. Active conditions are expected on the UT evening of July 11. Active conditions are also possible on the UT morning of July 13, due to the arrival of a glancing blow of the July 9 CME.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 112, sur la base de 09 stations.

Indices solaires pour 10 Jul 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	177
AK Chambon La Forêt	009
AK Wingst	008
Ap estimé	009
Nombre international de taches solaires estimé	124 - 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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