Affichage des archives de samedi, 7 avril 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Apr 07 1244 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
07 Apr 2018	067	002
08 Apr 2018	068	006
09 Apr 2018	067	013

Bulletin

Over the past 24 hours solar activity has been low with no active regions on the solar disk. No flares have been recorded. 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. A low latitude negative polarity coronal hole has crossed the central meridian yesterday. Solar activity is expected to remain low over the next 24 hours. Only B-class flares can be expected. Solar wind paremetrs variations have been very low. The solar wind speed is below 370 km/s. The total magnetic field strength has fluctuated between 1.5 nT and 3.5 nT. The Bz component has fluctuated between -3.5 nT and +3.5 nT. Geomagnetic conditions ranged between Kp index 1-2 (NOAA) and local K index 0-2 (Dourbes) over the past 24 hours. Mostly quiet to geomagnetic levels are expected today and tomorrow morning. Unsettled and even active conditions can be expected from tomorow evening (April 8) due to the influences of a high speed stream coming from the low-latitude negative polarity coronal hole.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 17 stations.

Indices solaires pour 06 Apr 2018

Nombre de Wolf, observé par Catania	000
Flux solaire à 10 cm	067
AK Chambon La Forêt	008
AK Wingst	004
Ap estimé	003
Nombre international de taches solaires estimé	000 - Basé sur 33 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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