Affichage des archives de mercredi, 23 septembre 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Sep 23 1231 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Active conditions expected (A>=20 or K=4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
23 Sep 2020	072	007
24 Sep 2020	074	007
25 Sep 2020	076	014

Bulletin

There is one sunspot visible on the Sun (reported this morning by the Royal Observatory of Belgium). X-ray flux is still at the A level, only minor B-flares could be expected.

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 320 and 380 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was oriented mostly away from the Sun (positive) with a magnitude between 3 nT and 9 nT.

Quiet conditions (K Dourbes between 0 and 2; NOAA Kp between 0 and 2) were registered in the past 24 hours. The solar wind coming from the low latitude extension of the northern polar coronal hole may affect the Earth in about 48 hours, causing an increase into active geomagnetic levels (K = 4).

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 010, sur la base de 19 stations.

Indices solaires pour 22 Sep 2020

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	072
AK Chambon La Forêt	008
AK Wingst	006
Ap estimé	005
Nombre international de taches solaires estimé	000 - Basé sur 27 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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