Affichage des archives de jeudi, 14 novembre 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Nov 14 1233 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
14 Nov 2019	072	004
15 Nov 2019	072	003
16 Nov 2019	072	008

Bulletin

The solar activity has been at very low levels over the past 24 hours. The small bipolar sunspot group (Catania sunspot group 23, NOAA-AR 2752) that emerged yesterday on the East limb did not show any flaring activity and has now decayed. The Sun is currently spotless and the X-ray flux remains below B-level. Solar activity is expected to remain at low levels for the next 24 hours.

No earth-directed coronal mass ejections (CMEs) have been observed in the available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values.

The solar wind parameters show nominal values: The total magnetic field is below 5 nT, the solar wind speed remained below 350 km/s, and the southern component of the magnetic filed remained close to zero. The solar wind parameters are expected to remain at the nominal level within the next 24-hour period. Enhancements of the solar wind parameters are expected to start later on Nov 16 or 17 due to the effect of the negative polarity coronal hole high-speed streams, which has reached the central meridian on Nov 13.

Quiet geomagnetic conditions were observed over the past 24 hours, and is expected to remain so for the next period.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 12 stations.

Indices solaires pour 13 Nov 2019

Nombre de Wolf, observé par Catania	014
Flux solaire à 10 cm	071
AK Chambon La Forêt	006
AK Wingst	002
Ap estimé	002
Nombre international de taches solaires estimé	000 - Basé sur 18 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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