Affichage des archives de vendredi, 18 novembre 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 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 2016	080	009
19 Nov 2016	080	017
20 Nov 2016	080	017

Bulletin

Solar activity was very low with X-ray flux remaining below C level with just a single minor B1.5 flare observed. NOAA region 2610 has decreased in size, while a new unipolar group which rotated on disk in the East has been numbered NOAA 2611. There is only a small chance for C-flares over the next days. Proton flux values were at background levels and expected to remain so. No Earth directed CMEs have been observed in coronagraph data.

Solar wind conditions were nominal, with solar wind speed decreasing below 400 km/s to around 360 km/s and total magnetic field was around the 3-4nT range. Bz was variable and the phi angle was in the negative sector. Solar wind conditions are expected to be nominal until later today or early tomorrow when an increase in solar wind speed can be expected under the influence of an equatorial positive polarity coronal hole.

Geomagnetic conditions were quiet (both local K Dourbes and NOAA Kp 0-2) and are expected to become quiet to unsettled with active periods possible under the expected solar wind increase by the equatorial coronal hole.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 031, sur la base de 13 stations.

Indices solaires pour 17 Nov 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	079
AK Chambon La Forêt	006
AK Wingst	004
Ap estimé	003
Nombre international de taches solaires estimé	031 - Basé sur 23 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

<< Aller à l'aperçu quotidien