Affichage des archives de jeudi, 6 août 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Aug 06 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
06 Aug 2020	073	008
07 Aug 2020	073	009
08 Aug 2020	073	005

Bulletin

During last 24 hours there were no C-class flares, and only one B-class flare was reported. NOAA AR 2770 still has beta configuration of its photospheric magnetic field and it might be the source of B-class flares in the coming hours. Although the isolated C-class flares are possible, they are not very probable. During last 24 hours no Earth directed CMEs have been observed in coronagraph data. Proton flux levels were at background values and they are expected to remain so.

The solar wind speed is presently 500 km/s and the interplanetary magnetic field magnitude is 4 nT. The solar wind associated with the equatorial coronal hole of positive polarity that has reached central meridian in the morning of August 03 is expected at Earth today or early tomorrow. The geomagnetic conditions are quiet, and we expect quiet to possibly unsettled conditions in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 013, sur la base de 26 stations.

Indices solaires pour 05 Aug 2020

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	073
AK Chambon La Forêt	009
AK Wingst	007
Ap estimé	006
Nombre international de taches solaires estimé	012 - 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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