Affichage des archives de dimanche, 26 mars 2017

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2017 Mar 26 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

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

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
26 Mar 2017	077	007
27 Mar 2017	077	034
28 Mar 2017	077	024

Bulletin

In the past 24 hours, no C flares were observed. Very low solar activity (no C flares) is expected in the next 24 hours, with a slight chance for a C flare from new beta region NOAA AR 2644. Over the past 24 hours, solar wind speed measured by DSCOVR decreased from about 480 to 390 km/s, while the magnitude of the Interplanetary Magnetic Field (IMF) ranged between about 1 and 4 nT. Quiet geomagnetic conditions (K Dourbes between 0 and 2; NOAA Kp between 0 and 2) were registered in the past 24 hours. Quiet to unsettled geomagnetic conditions (K Dourbes < 4) are expected on March 26. The arrival of a high speed stream from a large, recurrent coronal hole is expected at the end of March 26 or the first half of March 27. Consequently, active to minor storm geomagnetic conditions (K Dourbes = 4 to 5) are possible on March 27 and 28, with a slight chance for moderate geomagnetic storm intervals (K Dourbes = 6).

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 024, sur la base de 17 stations.

Indices solaires pour 25 Mar 2017

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	074
AK Chambon La Forêt	007
AK Wingst	003
Ap estimé	003
Nombre international de taches solaires estimé	016 - Basé sur 33 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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