Affichage des archives de mercredi, 5 août 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Aug 05 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
05 Aug 2020	073	008
06 Aug 2020	073	011
07 Aug 2020	072	008

Bulletin

Solar flaring activity is low, with only one B-class flare reported during last 24 hours. However, as the NOAA AR 2770 presently has beta configuration of its photospheric magnetic field, it might be the source of B-class and also isolated C-class flares in the coming hours. During last 24 hours there were no Earth directed CMEs and the solar protons remained at the background level. Although Earth is still inside the fast solar wind, the wind speed has strongly decreased during last 24 hours and its present value is 510 km/s. The interplanetary magnetic field magnitude is about 3 nT. The fast solar wind associated with the equatorial coronal hole of positive polarity that has reached central meridian in the morning of August 03, can be expected at Earth tomorrow. The geomagnetic conditions are presently quiet, and we expect quiet to unsettled conditions in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 012, sur la base de 20 stations.

Indices solaires pour 04 Aug 2020

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	073
AK Chambon La Forêt	011
AK Wingst	009
Ap estimé	009
Nombre international de taches solaires estimé	011 - Basé sur 30 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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