Affichage des archives de lundi, 21 septembre 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Sep 21 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
21 Sep 2020	071	007
22 Sep 2020	073	007
23 Sep 2020	075	007

Bulletin

The Sun is spotless, but the X-ray flux has increased above the B-level due to an active region rotating into view from the east limb. There is a possibility of having C-class flares in the coming days.

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. The greater than 2 MeV electron 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 varied between about 280 and 315 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was oriented towards the Sun (negative) with a magnitude between 3 and 9 nT. Bz was never below -5 nT.

Quiet geomagnetic conditions (K Dourbes between 0 and 2; NOAA Kp between 0 and 2) were registered in the past 24 hours. The same situation is expected for the next 48 hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 29 stations.

Indices solaires pour 20 Sep 2020

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	070
AK Chambon La Forêt	007
AK Wingst	004
Ap estimé	004
Nombre international de taches solaires estimé	000 - Basé sur 26 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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