Affichage des archives de mercredi, 30 août 2017

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2017 Aug 30 1237 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

No forecast

	Flux de 10 cm	Ap
30 Aug 2017	084	005
31 Aug 2017	083	040
01 Sep 2017	083	012

Bulletin

Over the past 24 hours solar activity has been low. There are currently tree active regions on the visible discs, but only Catania group 47 (NOAA region 2674) produced small C-class flare. We expect the activity to remain low with a probability of few sporadic C-class flare.

No other Earth directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph imagery and the solar protons remains at background level.

A minor geomagnetic storm was observed on August, 29 with a peaking around 21:00 UT. This may be due to an Interplanetary CME that provoked a shock onto the Solar Wind on August, 29 around 16:00 UT. Currently, the geomagnetic conditions are returning to quiet with Kp (NOAA) and local K (Dourbes) indexes ranging between 1-2. A minor to moderated storm (K between 5 and 6) is expected on August, 31 when the fast solar wind coming from the large coronal hole crossing the central meridian on August 29 will reach Earth.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 048, sur la base de 19 stations.

Indices solaires pour 29 Aug 2017

Nombre de Wolf, observé par Catania	051
Flux solaire à 10 cm	084
AK Chambon La Forêt	019
AK Wingst	010
Ap estimé	011
Nombre international de taches solaires estimé	036 - Basé sur 35 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