Affichage des archives de mardi, 9 août 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Aug 09 1236 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
09 Aug 2016	096	021
10 Aug 2016	099	014
11 Aug 2016	100	008

Bulletin

The strongest flare, out of three C-class flares reported during last 24 hours, was the C8.9 flare (peaked at 00:34 UT) on August 09. The flare originated from the NOAA AR 2574 situated close to the East solar limb, and was associated with narrow and slow CME. In the coming hours we expect C-class flares and possibly, but not very probably, an isolated M-class flare. No Earth directed CMEs were observed in the last 24 hours.

The Earth is presently inside the fast solar wind with the speed of about 650 km/s, and the interplanetary magnetic filed magnitude amounts 7 nT. At about 09:00 UT this morning the solar wind speed started to increase, simultaneously with the fluctuations of the Bz component of the interplanetary magnetic field. This indicates arrival of the fast flow, probably associated with the large northern polar coronal hole with the extent to the low latitudes (which reached central meridian on August 06). The fast flow could induce active to minor storm geomagnetic conditions in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 073, sur la base de 24 stations.

Indices solaires pour 08 Aug 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	096
AK Chambon La Forêt	017
AK Wingst	014
Ap estimé	014
Nombre international de taches solaires estimé	082 - 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

<< Aller à l'aperçu quotidien