Affichage des archives de vendredi, 10 novembre 2017

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2017 Nov 10 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Minor storm expected (A>=30 or K=5)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
10 Nov 2017	066	017
11 Nov 2017	066	021
12 Nov 2017	069	007

Bulletin

The solar activity is quiet as the solar disc remains spotless; no flares and no active regions have been recorded in past 24 h on the disc. The X-ray flux is expected to remain below C level.

No Earth directed Coronal Mass Ejections have been observed and the solar protons flux remained at background levels over the past 24 hours.

The Earth remained in the fast flow, the speed has decreased up to 550 km/s on Nov 9 abound 17:00 UT before unexpectedly rising again up to a current value of 700 km/s. The interplanetary magnetic field magnitude remained below 7 nT and the Bz component was fluctuating between -6 and 6 nT. The solar wind speed is expected to remain fast as long as the Earth remains in the solar wind flow associated with the high speed stream coming from the coronal hole (that has crossed the central meridian on Nov 4).

Unsettle to disturb geomagnetic conditions were observed (local K Dourbes 2-4, NOAA Kp 3-4). As long as the Earth remains in the fast solar wind flow, further minor to moderate geomagnetic storms cannot be excluded, especially if Bz component remains negative for long period of time.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 12 stations.

Indices solaires pour 09 Nov 2017

Nombre de Wolf, observé par Catania	000
Flux solaire à 10 cm	066
AK Chambon La Forêt	031
AK Wingst	025
Ap estimé	025
Nombre international de taches solaires estimé	000 - Basé sur 21 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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