Affichage des archives de mercredi, 18 juillet 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Jul 18 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
18 Jul 2018	071	006
19 Jul 2018	071	007
20 Jul 2018	070	012

Bulletin

Solar activity remains to be at very low level, and there were no flares reported during last 24 hours. As there are no active regions present at the visible side of the Sun, we expect such a low flaring activity to persist in the coming hours. No Earth directed CMEs were observed during last 24 hours, and the solar protons remained at the background level.

The increase of the solar wind speed, associated with patchy equatorial coronal hole that reached central meridian on July 16, is expected at the Earth late on July 19. The unsettled to possibly, but not very probably, active conditions are expected in the morning of July 20, due to the expected arrival of the fast solar wind. The geomagnetic conditions are presently quiet, and we expect them to stay so in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 22 stations.

Indices solaires pour 17 Jul 2018

Nombre de Wolf, observé par Catania	012
Flux solaire à 10 cm	071
AK Chambon La Forêt	011
AK Wingst	008
Ap estimé	010
Nombre international de taches solaires estimé	000 - Basé sur 29 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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