Affichage des archives de dimanche, 27 mai 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 May 27 1256 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
27 May 2018	073	005
28 May 2018	074	011
29 May 2018	073	007

Bulletin

Solar activity was at low levels. NOAA AR 2712 (McIntosh: Cao; Mag.Type: Beta) produced several B-class flares. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels. Solar activity is expected to be at low levels with some chance for C class flares. Solar wind parameters variations are very low. Solar wind speed was below 350 km/s. The total magnetic field was below 5 nT. The Bz component fluctuated between -3.5 nT and +3 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 today. Unsettled geomagnetic conditions can be expected from tomorrow due to the influence of a positive polarity low lattitude extension of the northern coronal hole.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 031, sur la base de 22 stations.

Indices solaires pour 26 May 2018

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	073
AK Chambon La Forêt	008
AK Wingst	004
Ap estimé	004
Nombre international de taches solaires estimé	028 - Basé sur 28 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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