Affichage des archives de dimanche, 7 août 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Aug 07 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Minor storm expected (A>=30 or K=5)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
07 Aug 2016	086	010
08 Aug 2016	086	023
09 Aug 2016	086	018

Bulletin

Solar activity was low in the past 24 hours. NOAA AR 2571 produced two low C flares. The brightest flare was a C1.7 flare peaking at 10:27 UT on August 7. More C flares are expected in the next 24 hours. In the past 24 hours, solar wind speed measured by DSCOVR decreased from about 600 to 550 km/s, indicating waning high speed stream influence. The magnitude of the Interplanetary Magnetic Field varied between about 4 and 7 nT. In the past 24 hours, quiet to unsettled geomagnetic levels were registered (K Dourbes between 2 and 3; NOAA Kp between 2 and 4). Quiet to unsettled levels (K Dourbes < 4) are expected on August 7, with a slight chance for active levels (K Dourbes = 4). Active to minor storm conditions (K Dourbes =4-5) are possible on August 8, with the expected arrival of a high speed stream from an isolated, positive equatorial coronal hole. Active levels are possible on August 9, as the influence of the new coronal hole high speed stream wanes.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 049, sur la base de 23 stations.

Indices solaires pour 06 Aug 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	083
AK Chambon La Forêt	024
AK Wingst	014
Ap estimé	015
Nombre international de taches solaires estimé	038 - Basé sur 31 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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