Affichage des archives de mercredi, 22 mars 2017

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2017 Mar 22 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
22 Mar 2017	073	024
23 Mar 2017	075	024
24 Mar 2017	075	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. Over the past 24 hours, solar wind speed measured by DSCOVR increased further to current values of about 720 km/s. Meanwhile the magnitude of the Interplanetary Magnetic Field has varied between 5 and 14 nT. Bz was below -5 nT between 14:15 and 15:00 UT on March 21, and fluctuated a lot in the rest of the period. Quiet to minor storm conditions (K Dourbes between 2 and 5; NOAA Kp between 3 and 5) were registered in the past 24 hours due to the enhanced solar wind conditions caused by the passage of a high speed stream from a positive coronal hole. The minor geomagnetic storm intervals occurred between 15h and 21h UT. Continued influence from the high speed stream is expected on March 22 and 23, with quiet to active geomagnetic levels (K Dourbes < 5) and a chance for minor geomagnetic storm intervals (K Dourbes = 5). On March 24, active periods (K Dourbes = 4) are possible as waning high speed stream influence is expected.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 013, sur la base de 14 stations.

Indices solaires pour 21 Mar 2017

Nombre de Wolf, observé par Catania	013
Flux solaire à 10 cm	071
AK Chambon La Forêt	043
AK Wingst	032
Ap estimé	030
Nombre international de taches solaires estimé	012 - Basé sur 17 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