Affichage des archives de mercredi, 5 février 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Feb 05 1231 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
05 Feb 2020	070	009
06 Feb 2020	070	019
07 Feb 2020	070	007

Bulletin

X-ray flux remained below B level throughout the period. The Sun is spotless and no flaring is expected.

No Earth-directed CMEs have been observed in coronagraph data.

The proton flux levels were at background values and expected to remain so.

Solar wind conditions were near nominal with a slight increase in Solar wind speed from 350 km/s to around 370 km/s. total magnetic field was near a nominal 5nT, with a variable Bz and the magnetic field phi angle mainly in the negative sector. Solar wind conditions are expected to become slightly enhanced later today or by tomorrow morning due to the fast flow from the extension of the South polar coronal hole.

Geomagnetic conditions were quiet (both local K Dourbes and NOAA Kp 0-2). Unsettled to active conditions are expected over the next 24-48 hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 18 stations.

Indices solaires pour 04 Feb 2020

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	070
AK Chambon La Forêt	011
AK Wingst	008
Ap estimé	006
Nombre international de taches solaires estimé	000 - Basé sur 21 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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