Affichage des archives de lundi, 18 novembre 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Nov 18 1230 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
18 Nov 2019	070	004
19 Nov 2019	070	005
20 Nov 2019	070	011

Bulletin

The solar activity has been at very low levels over the past 24 hours. The Sun is currently spotless and the X-ray flux remains below B-level. Solar activity is expected to remain at low levels for the next 24 hours.

No earth-directed coronal mass ejections (CMEs) have been observed in the available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values. The solar wind speed has decreased from around 460 to 360 km/s over the past 24 hours. The total magnetic field strength has fluctuated between 2 nT and 4 nT. The Bz component fluctuated around 0 nT, ranging between -4 and +4 nT. Geomagnetic conditions ranged between Kp index 0-3 (NOAA) and local K index 0-2 (Dourbes) over the past 24 hours.

Geomagnetic conditions are expected to remain at quiet conditions for today and tomorrow, before possibly enhancing on experiencing the 20th/21st of November, due to the arrival of a high speed stream from a small low latitude positive polarity Coronal Hole.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 16 stations.

Indices solaires pour 17 Nov 2019

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	070
AK Chambon La Forêt	008
AK Wingst	006
Ap estimé	005
Nombre international de taches solaires estimé	000 - Basé sur 13 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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