Affichage des archives de mardi, 20 novembre 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Nov 20 1234 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
20 Nov 2018	072	016
21 Nov 2018	072	017
22 Nov 2018	072	017

Bulletin

Solar X-ray flux remained below B level. As NOAA region 2727 is in decay, chances for C-flares are further reduced and very low.

No Earth directed CMEs have been observed in coronagraph images.

Proton flux levels were at background values and are expected to remain so.

Solar wind went through a period of increased interplanetary magnetic field to just over 10nT which announced a period of rise in Solar wind velocity to currently close to 440 km/s. This is indicative of a mild influence from a high speed stream from the Southern negative polarity coronal holes. It remains to be seen if it's influence will set true more clearly. Slightly enhanced solar wind conditions are hence expected to continue.

Geomagnetic conditions were quiet to unsettled (NOAA Kp 0-3, and local K Dourbes 1-3) and are expected to continue under the slightly enhanced Solar wind conditions.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 04 stations.

Indices solaires pour 19 Nov 2018

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	071
AK Chambon La Forêt	010
AK Wingst	006
Ap estimé	004
Nombre international de taches solaires estimé	013 - Basé sur 09 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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