Affichage des archives de lundi, 19 novembre 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Nov 19 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
19 Nov 2018	073	006
20 Nov 2018	073	007
21 Nov 2018	073	012

Bulletin

Solar X-ray flux remained below B level. NOAA region 2727 was stable or in decay while rotating towards the West limb. X-ray flux is expected to remain below C level.

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 was close to nominal. Solar wind speed varied in the 310-350 km/s range. Total magnetic field reached up to 8nT but is currently back below 5nT. Bz was variable overall. The phi angle was in the negative sector. Solar wind is expected to be near nominal in the next days with later a possible slight increase due to the low latitude extension of the Southern polar coronal hole.

Geomagnetic conditions were quiet to unsettled (NOAA Kp 0-2 and local K Dourbes 0-3). Quiet geomagnetic conditions are expected to be quiet over the next days, possibly later increasing to unsettled conditions.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 012, sur la base de 06 stations.

Indices solaires pour 18 Nov 2018

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	072
AK Chambon La Forêt	005
AK Wingst	002
Ap estimé	002
Nombre international de taches solaires estimé	014 - Basé sur 19 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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