Affichage des archives de samedi, 28 septembre 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Sep 28 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Minor storm expected (A>=30 or K=5)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
28 Sep 2019	068	040
29 Sep 2019	069	022
30 Sep 2019	069	012

Bulletin

Solar X-ray flux remained below B class levels throughout the period. The Solar disk is spotless and the X-ray flux is expected to remain at or below background levels.

There were no Earth-directed Coronal Mass Ejections (CME) observed in coronagraph data.

Proton levels were at background values and are expected to remain so.

The solar wind speed has increased from 500 to 700 km/s yesterday as we entered a high speed stream (HSS) from a recurrent positive polarity coronal hole, and has remained at high levels since then. The total magnetic field strength has fluctuated between 6 and 15 nT. The Bz ranged between -10 and 6 nT. Geomagnetic conditions ranged between Kp index 1-5 (NOAA) and local K index 2-5 (Dourbes).

The Solar wind conditions will remain at enhanced levels over the next 24 hours before slowly declining over the following days.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 19 stations.

Indices solaires pour 27 Sep 2019

Nombre de Wolf, observé par Catania	000
Flux solaire à 10 cm	066
AK Chambon La Forêt	044
AK Wingst	026
Ap estimé	025
Nombre international de taches solaires estimé	000 - Basé sur 25 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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