Affichage des archives de dimanche, 16 février 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Feb 16 1231 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
16 Feb 2020	071	004
17 Feb 2020	071	008
18 Feb 2020	071	008

Bulletin

The solar activity has been quiet over the past 24 hours. The visible solar disc is spotless and the X-ray flux is below B-level. The solar activity is expected to remain at low levels over 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 Earth remained in the slow solar wind regime: the wind speed range was 320-380 km/s, the total interplanetary magnetic fields were below 6.5 nT, and the southward magnetic component fluctuated between -5 nT and 5 nT. The solar wind conditions are expected in the slow solar wind regime for the next 24-hour period. The high-speed streams from the equatorial coronal hole (negative polarity) that reached the central meridian on February 13 may slightly enhance the solar wind parameters in about 1 days.

The geomagnetic conditions were mostly quiet (with a short isolated period of unsettled conditions) and are expected to remain mostly quiet with possible isolated period of unsettled conditions.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 08 stations.

Indices solaires pour 15 Feb 2020

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	071
AK Chambon La Forêt	009
AK Wingst	///
Ap estimé	006
Nombre international de taches solaires estimé	000 - Basé sur 22 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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