Affichage des archives de dimanche, 16 septembre 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Sep 16 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Active conditions expected (A>=20 or K=4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
16 Sep 2018	070	008
17 Sep 2018	071	012
18 Sep 2018	070	007

Bulletin

Over the past 24 hours solar activity has been Low. No significant flares have been recorded. There are currently no significant ARs on the solar disk. No Earth directed Coronal Mass Ejections (CMEs) have been detected. The greater than 10MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a low probability of C-class flares. The solar wind speed has decreased from around 525 to 420 km/s over the past 24 hours. The total magnetic field strength has fluctuated around 4nT. The Bz component has been mainly negative, fluctuating between -4 and +4 nT. Geomagnetic conditions ranged between Kp index 1-2 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be quiet over the next 24 hours. Mostly unsettled geomagnetic conditions can be expected from tomorrow (17 September) due to the expected influences from the negative polarity coronal hole.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 20 stations.

Indices solaires pour 15 Sep 2018

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	069
AK Chambon La Forêt	013
AK Wingst	009
Ap estimé	009
Nombre international de taches solaires estimé	000 - Basé sur 34 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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