Affichage des archives de lundi, 16 octobre 2017

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2017 Oct 16 1230 UTC

Prévisions SIDC

Éruptions solaires

Quiet conditions (<50% probability of C-class flares)

Géomagnétisme

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

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
16 Oct 2017	071	013
17 Oct 2017	073	008
18 Oct 2017	073	007

Bulletin

The Sun did not produce any flares in the past 24 hours. The chance for a C flare in the next 24 hours is estimated at 5%. No Earth- directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.

Solar wind speed measured by DSCOVR decreased from about 575 to about 530 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was directed away from the Sun and its magnitude ranged between about 1 and 6 nT. Quiet to active geomagnetic conditions (K Dourbes between 1 and 4; NOAA Kp between 1 and 5) were registered in the past 24 hours. Active levels (K Dourbes = 4) are possible on October 16, 17 and 18 due to continued influence of the high speed stream associated with a positive coronal hole, with a slight chance for minor storm conditions (K Dourbes = 5).

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 19 stations.

Indices solaires pour 15 Oct 2017

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	070
AK Chambon La Forêt	024
AK Wingst	022
Ap estimé	025
Nombre international de taches solaires estimé	000 - Basé sur 24 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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