Affichage des archives de mardi, 17 mars 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Mar 17 1231 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
17 Mar 2020	070	009
18 Mar 2020	070	010
19 Mar 2020	070	007

Bulletin

The Sun is spotless and did not produce any flares in the past 24 hours. The chance for a C flare in the next 24 hours is estimated at only 1%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

Solar wind speed near Earth as registered by DSCOVR increased from about 340 to 470 km/s in the past 24 hours, with current values around 420 km/s. The Interplanetary Magnetic Field (IMF) was predominantly oriented towards the Sun, and its magnitude varied between about 0 and 9 nT. Bz was never below -5 nT for extended intervals. Quiet to slightly enhanced solar wind conditions are expected in the next 24 hours.

Quiet to unsettled geomagnetic conditions (K Dourbes between 1 and 3; NOAA Kp between 1 and 2) were registered in the past 24 hours. Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on March 17, 18 and 19, with a slight chance for active intervals (K Dourbes = 4).

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 28 stations.

Indices solaires pour 16 Mar 2020

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	070
AK Chambon La Forêt	009
AK Wingst	007
Ap estimé	005
Nombre international de taches solaires estimé	000 - 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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