Affichage des archives de mercredi, 10 janvier 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Jan 10 1230 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
10 Jan 2018	070	007
11 Jan 2018	070	005
12 Jan 2018	069	009

Bulletin

Solar activity remains to be very low without any flares reported during last 24 hours. The only active region observed on the visible side of the Sun, NOAA AR 2694 is decaying and it has presently alpha configuration of its photospheric magnetic field. We expect that this very low solar activity will persist in the coming hours. There were no Earth directed CMEs observed during last 24 hours, and the solar protons are at background level. Solar wind speed is slowly decreasing and it is presently about 470 km/s. The interplanetary magnetic field magnitude is stable having the value of 3 nT. The fast solar wind associated with the coronal hole (between N05 and N30) which reached central meridian yesterday morning might be expected at the Earth late on January 12. The geomagnetic conditions are quiet and we expect them to stay so in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 023, sur la base de 05 stations.

Indices solaires pour 09 Jan 2018

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	071
AK Chambon La Forêt	012
AK Wingst	010
Ap estimé	010
Nombre international de taches solaires estimé	011 - Basé sur 10 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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