Affichage des archives de dimanche, 6 août 2017

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2017 Aug 06 1243 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
06 Aug 2017	074	020
07 Aug 2017	074	007
08 Aug 2017	074	007

Bulletin

Beta region NOAA 2670 produced a few low B flares within the past 24 hours. Very low solar activity (no C flares) is expected in the next 48 hours. No earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels. Under the influence of the high speed stream from a positive coronal hole, solar wind speed registered by DSCOVR varied between about 605 and 790 km/s. The Interplanetary Magnetic Field (IMF) pointed away from the Sun and its magnitude varied between about 2 and 7 nT. Bz varied between about -6 and 6 nT. Quiet to active geomagnetic conditions (K Dourbes between 2 and 4; NOAA Kp between 3 and 4) were registered in the past 24 hours. Active geomagnetic conditions (K Dourbes = 4) are possible on August 6. Quiet to unsettled geomagnetic levels are expected on August 7 and 8.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 012, sur la base de 24 stations.

Indices solaires pour 05 Aug 2017

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	074
AK Chambon La Forêt	028
AK Wingst	021
Ap estimé	022
Nombre international de taches solaires estimé	013 - Basé sur 38 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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